def __init__(self, parent=None, **kwargs):
# type: (Optional[QWidget], Any) -> None
super().__init__(parent, **kwargs)
layout = QVBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(0)
self.setLayout(layout)
self.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Expanding)
self.__tabs = [] # type: List[_Tab]
self.__currentIndex = -1
self.__changeOnHover = False
self.__iconSize = QSize(26, 26)
self.__group = QButtonGroup(self, exclusive=True)
self.__group.buttonPressed[QAbstractButton].connect(
self.__onButtonPressed)
self.setMouseTracking(True)
self.__sloppyButton = None # type: Optional[QAbstractButton]
self.__sloppyRegion = QRegion()
self.__sloppyTimer = QTimer(self, singleShot=True)
self.__sloppyTimer.timeout.connect(self.__onSloppyTimeout)
def __init__(self):
super().__init__()
self.corpus = None
self.learning_thread = None
# Commit button
gui.auto_commit(self.buttonsArea, self, 'autocommit', 'Commit', box=False)
button_group = QButtonGroup(self, exclusive=True)
button_group.buttonClicked[int].connect(self.change_method)
self.widgets = []
method_layout = QVBoxLayout()
self.controlArea.layout().addLayout(method_layout)
for i, (method, attr_name) in enumerate(self.methods):
widget = method(self, title='Options')
widget.setFixedWidth(self.control_area_width)
widget.valueChanged.connect(self.commit)
self.widgets.append(widget)
setattr(self, attr_name, widget)
rb = QRadioButton(text=widget.Model.name)
button_group.addButton(rb, i)
method_layout.addWidget(rb)
method_layout.addWidget(widget)
button_group.button(self.method_index).setChecked(True)
self.toggle_widgets()
method_layout.addStretch()
# Topics description
self.topic_desc = TopicViewer()
self.topic_desc.topicSelected.connect(self.send_topic_by_id)
self.mainArea.layout().addWidget(self.topic_desc)
self.topic_desc.setFocus()
def __init__(self, parent=None, master=None, **kwargs):
super().__init__(parent, **kwargs)
self._group_var = self.DEFAULT_GROUP_VAR
self._master = master
self._master.input_data_changed.connect(self._set_model)
self.setLayout(QVBoxLayout())
form = QFormLayout()
cpm_b = QRadioButton("Counts per million", checked=True)
med_b = QRadioButton("Median")
self.group = QButtonGroup()
self.group.buttonClicked.connect(self._on_button_clicked)
for i, button in enumerate([cpm_b, med_b]):
index = index_to_enum(Normalize.Method, i).value
self.group.addButton(button, index - 1)
form.addRow(button)
self.group_by_check = QCheckBox("Cell Groups: ",
enabled=self.DEFAULT_GROUP_BY)
self.group_by_check.clicked.connect(self.edited)
self.group_by_combo = QComboBox(enabled=self.DEFAULT_GROUP_BY)
self.group_by_model = DomainModel(order=(DomainModel.METAS,
DomainModel.CLASSES),
valid_types=DiscreteVariable,
alphabetical=True)
self.group_by_combo.setModel(self.group_by_model)
self.group_by_combo.currentIndexChanged.connect(self.changed)
self.group_by_combo.activated.connect(self.edited)
form.addRow(self.group_by_check, self.group_by_combo)
self.layout().addLayout(form)
self._set_model()
def __init__(self, parent=None, **kwargs):
super().__init__(parent, **kwargs)
self.__method = self.DEFAULT_METHOD
self.setLayout(QGridLayout())
self.__group = QButtonGroup(self, exclusive=True)
self.__group.buttonClicked.connect(self.__method_rb_clicked)
for method_id in range(len(self.Methods)):
method = self.Methods[method_id]
rb = QRadioButton(method.name)
rb.setChecked(self.__method == method_id)
rb.setToolTip(self.get_tooltip(method))
self.__group.addButton(rb, method_id)
self.layout().addWidget(rb)
def setup_method_layout(self):
self.group = QButtonGroup(self, exclusive=True)
if self.initialize_methods:
self.methods = [method() for method in self.methods]
for i, method in enumerate(self.methods):
rb = QRadioButton(self, text=self.textify(method.name))
rb.setChecked(i == self.method_index)
rb.setToolTip(self.get_tooltip(method))
self.group.addButton(rb, i)
self.method_layout.addWidget(rb, i, 0)
self.group.buttonClicked.connect(self.update_value)
def __init__(self, tree, dataset, master, parent=None):
QWidget.__init__(self, parent)
Control.__init__(self, tree, dataset, master)
self.setLayout(QVBoxLayout())
self.buttonGroup = QButtonGroup(self)
self.values = []
for i, option in enumerate(tree.subelements_top("Option")):
rb = QRadioButton(option.displayName, self)
self.buttonGroup.addButton(rb)
self.buttonGroup.setId(rb, i)
self.layout().addWidget(rb)
self.values.append(option.value)
self.buttonGroup.button(0).setChecked(True)
class RadioBooleanFilter(QWidget, Control):
""" Boolean filter (Only/Exclude)
"""
def __init__(self, tree, dataset, master, parent=None):
QWidget.__init__(self, parent)
Control.__init__(self, tree, dataset, master)
self.setLayout(QVBoxLayout())
self.buttonGroup = QButtonGroup(self)
self.values = []
for i, option in enumerate(tree.subelements_top("Option")):
rb = QRadioButton(option.displayName, self)
self.buttonGroup.addButton(rb)
self.buttonGroup.setId(rb, i)
self.layout().addWidget(rb)
self.values.append(option.value)
self.buttonGroup.button(0).setChecked(True)
def value(self):
return {"excluded": "%i" % self.buttonGroup.checkedId()}
def get_filter(self):
return self.tree.internalName, self.value()
def query(self):
return [("Filter", self.tree, self.value())]
def setControlValue(self, name, value):
for i, v in enumerate(self.values):
if v == value:
button = self.buttonGroup.button(i)
button.setChecked(True)
break
class RadioBooleanFilter(QWidget, Control):
""" Boolean filter (Only/Exclude)
"""
def __init__(self, tree, dataset, master, parent=None):
QWidget.__init__(self, parent)
Control.__init__(self, tree, dataset, master)
self.setLayout(QVBoxLayout())
self.buttonGroup = QButtonGroup(self)
self.values = []
for i, option in enumerate(tree.subelements_top("Option")):
rb = QRadioButton(option.displayName, self)
self.buttonGroup.addButton(rb)
self.buttonGroup.setId(rb, i)
self.layout().addWidget(rb)
self.values.append(option.value)
self.buttonGroup.button(0).setChecked(True)
def value(self):
return {"excluded": "%i" % self.buttonGroup.checkedId()}
def get_filter(self):
return self.tree.internalName, self.value()
def query(self):
return [("Filter", self.tree, self.value())]
def setControlValue(self, name, value):
for i, v in enumerate(self.values):
if v == value:
button = self.buttonGroup.button(i)
button.setChecked(True)
break
def __init__(self, parent=None, **kwargs):
super().__init__(parent, **kwargs)
self.fixedThresh = 50
self.percThresh = 5
self.useFixedThreshold = False
self.filter0 = True
self.setLayout(QVBoxLayout())
self.layout().addWidget(QLabel("Remove features with too many"))
options = ["missing values", "zeros"]
self.filter_buttons = QButtonGroup(exclusive=True)
self.filter_buttons.buttonClicked.connect(self.filterByClicked)
for idx, option, in enumerate(options):
btn = QRadioButton(self, text=option, checked=idx == 0)
self.filter_buttons.addButton(btn, id=idx)
self.layout().addWidget(btn)
self.layout().addSpacing(20)
filter_settings = QGroupBox(title='Threshold:', flat=True)
filter_settings.setLayout(QFormLayout())
self.settings_buttons = QButtonGroup(exclusive=True)
self.settings_buttons.buttonClicked.connect(self.filterSettingsClicked)
btn_perc = QRadioButton(self,
text='Percentage',
checked=not self.useFixedThreshold)
self.settings_buttons.addButton(btn_perc, id=0)
self.percSpin = QSpinBox(minimum=0,
maximum=100,
value=self.percThresh,
enabled=not self.useFixedThreshold)
self.percSpin.valueChanged[int].connect(self.setPercThresh)
self.percSpin.editingFinished.connect(self.edited)
btn_fix = QRadioButton(self,
text='Fixed',
checked=self.useFixedThreshold)
self.settings_buttons.addButton(btn_fix, id=1)
self.fixedSpin = QSpinBox(minimum=0,
maximum=1000000,
value=self.fixedThresh,
enabled=self.useFixedThreshold)
self.fixedSpin.valueChanged[int].connect(self.setFixedThresh)
self.fixedSpin.editingFinished.connect(self.edited)
filter_settings.layout().addRow(btn_fix, self.fixedSpin)
filter_settings.layout().addRow(btn_perc, self.percSpin)
self.layout().addWidget(filter_settings)
def __init__(self, parent=None, **kwargs):
QWidget.__init__(self, parent, **kwargs)
layout = QVBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(0)
self.setLayout(layout)
self.setSizePolicy(QSizePolicy.Fixed,
QSizePolicy.Expanding)
self.__tabs = []
self.__currentIndex = -1
self.__changeOnHover = False
self.__iconSize = QSize(26, 26)
self.__group = QButtonGroup(self, exclusive=True)
self.__group.buttonPressed[QAbstractButton].connect(
self.__onButtonPressed
)
self.setMouseTracking(True)
self.__sloppyButton = None
self.__sloppyRegion = QRegion()
self.__sloppyTimer = QTimer(self, singleShot=True)
self.__sloppyTimer.timeout.connect(self.__onSloppyTimeout)
def qbuttongroup_emit_clicked(bg: QButtonGroup, id_: int):
button = bg.button(id_)
bg.buttonClicked.emit(button)
if QT_VERSION_INFO >= (5, 15):
bg.idClicked.emit(id_)
if QT_VERSION_INFO < (6, 0):
bg.buttonClicked[int].emit(id_)
def __init__(self, parent=None, **kwargs):
super().__init__(parent, **kwargs)
self.setLayout(QVBoxLayout())
self.__scoreidx = 0
self.__strategy = UnivariateFeatureSelect.Fixed
self.__k = 10
self.__p = 75.0
box = QGroupBox(title="Score", flat=True)
box.setLayout(QVBoxLayout())
self.__cb = cb = QComboBox(self, )
self.__cb.currentIndexChanged.connect(self.setScoreIndex)
self.__cb.activated.connect(self.edited)
box.layout().addWidget(cb)
self.layout().addWidget(box)
box = QGroupBox(title="Strategy", flat=True)
self.__group = group = QButtonGroup(self, exclusive=True)
self.__spins = {}
form = QFormLayout()
fixedrb = QRadioButton("Fixed:", checked=True)
group.addButton(fixedrb, UnivariateFeatureSelect.Fixed)
kspin = QSpinBox(
minimum=1,
value=self.__k,
enabled=self.__strategy == UnivariateFeatureSelect.Fixed)
kspin.valueChanged[int].connect(self.setK)
kspin.editingFinished.connect(self.edited)
self.__spins[UnivariateFeatureSelect.Fixed] = kspin
form.addRow(fixedrb, kspin)
percrb = QRadioButton("Percentile:")
group.addButton(percrb, UnivariateFeatureSelect.Percentile)
pspin = QDoubleSpinBox(
minimum=0.0,
maximum=100.0,
singleStep=0.5,
value=self.__p,
suffix="%",
enabled=self.__strategy == UnivariateFeatureSelect.Percentile)
pspin.valueChanged[float].connect(self.setP)
pspin.editingFinished.connect(self.edited)
self.__spins[UnivariateFeatureSelect.Percentile] = pspin
# Percentile controls disabled for now.
pspin.setEnabled(False)
percrb.setEnabled(False)
form.addRow(percrb, pspin)
# form.addRow(QRadioButton("FDR"), QDoubleSpinBox())
# form.addRow(QRadioButton("FPR"), QDoubleSpinBox())
# form.addRow(QRadioButton("FWE"), QDoubleSpinBox())
self.__group.buttonClicked.connect(self.__on_buttonClicked)
box.setLayout(form)
self.layout().addWidget(box)
class SingleMethodModule(PreprocessorModule):
Methods = NotImplemented
DEFAULT_METHOD = NotImplemented
def __init__(self, parent=None, **kwargs):
super().__init__(parent, **kwargs)
self.__method = self.DEFAULT_METHOD
self.setLayout(QGridLayout())
self.__group = QButtonGroup(self, exclusive=True)
self.__group.buttonClicked.connect(self.__method_rb_clicked)
for method_id in range(len(self.Methods)):
method = self.Methods[method_id]
rb = QRadioButton(method.name)
rb.setChecked(self.__method == method_id)
rb.setToolTip(self.get_tooltip(method))
self.__group.addButton(rb, method_id)
self.layout().addWidget(rb)
@property
def method(self) -> int:
return self.__method
def setParameters(self, params: Dict):
self._set_method(params.get("method", self.DEFAULT_METHOD))
def _set_method(self, method: int):
if self.__method != method:
self.__method = method
self.__group.button(method).setChecked(True)
self.changed.emit()
def __method_rb_clicked(self):
self._set_method(self.__group.checkedId())
self.edited.emit()
def parameters(self) -> Dict:
return {"method": self.__method}
def __repr__(self):
return self.Methods[self.__method].name
def __init__(self):
super().__init__()
self.corpus = None
self.learning_thread = None
# Commit button
gui.auto_commit(self.buttonsArea, self, 'autocommit', 'Commit', box=False)
button_group = QButtonGroup(self, exclusive=True)
button_group.buttonClicked[int].connect(self.change_method)
self.widgets = []
method_layout = QVBoxLayout()
self.controlArea.layout().addLayout(method_layout)
for i, (method, attr_name) in enumerate(self.methods):
widget = method(self, title='Options')
widget.setFixedWidth(self.control_area_width)
widget.valueChanged.connect(self.commit)
self.widgets.append(widget)
setattr(self, attr_name, widget)
rb = QRadioButton(text=widget.Model.name)
button_group.addButton(rb, i)
method_layout.addWidget(rb)
method_layout.addWidget(widget)
button_group.button(self.method_index).setChecked(True)
self.toggle_widgets()
method_layout.addStretch()
# Topics description
self.topic_desc = TopicViewer()
self.topic_desc.topicSelected.connect(self.send_topic_by_id)
self.mainArea.layout().addWidget(self.topic_desc)
self.topic_desc.setFocus()
def __init__(self, parent=None, **kwargs):
super().__init__(parent, **kwargs)
self.setLayout(QVBoxLayout())
self.__method = ImputeEditor.Average
self.__group = group = QButtonGroup(self, exclusive=True)
group.buttonClicked.connect(self.__on_buttonClicked)
for methodid in [self.Average, self.Random, self.DropRows]:
text = self.Names[methodid]
rb = QRadioButton(text=text, checked=self.__method == methodid)
group.addButton(rb, methodid)
self.layout().addWidget(rb)
class SingleMethodModule(PreprocessorModule):
method_index = settings.Setting(0)
initialize_methods = True
def setup_method_layout(self):
self.group = QButtonGroup(self, exclusive=True)
if self.initialize_methods:
self.methods = [method() for method in self.methods]
for i, method in enumerate(self.methods):
rb = QRadioButton(self, text=self.textify(method.name))
rb.setChecked(i == self.method_index)
rb.setToolTip(self.get_tooltip(method))
self.group.addButton(rb, i)
self.method_layout.addWidget(rb, i, 0)
self.group.buttonClicked.connect(self.update_value)
def get_value(self):
self.method_index = self.group.checkedId()
return self.methods[self.method_index]
class SingleMethodModule(PreprocessorModule):
method_index = settings.Setting(0)
initialize_methods = True
def setup_method_layout(self):
self.group = QButtonGroup(self, exclusive=True)
if self.initialize_methods:
self.methods = [method() for method in self.methods]
for i, method in enumerate(self.methods):
rb = QRadioButton(self, text=self.textify(method.name))
rb.setChecked(i == self.method_index)
rb.setToolTip(self.get_tooltip(method))
self.group.addButton(rb, i)
self.method_layout.addWidget(rb, i, 0)
self.group.buttonClicked.connect(self.update_value)
def get_value(self):
self.method_index = self.group.checkedId()
return self.methods[self.method_index]
def __init__(self, parent=None, **kwargs):
super().__init__(parent, **kwargs)
self.setLayout(QVBoxLayout())
self._n_genes = self.DEFAULT_N_GENS
self._n_groups = self.DEFAULT_N_GROUPS
form = QFormLayout()
self.n_genes_spin = QSpinBox(minimum=1,
maximum=10**6,
value=self._n_genes)
self.n_genes_spin.valueChanged[int].connect(self._set_n_genes)
self.n_genes_spin.editingFinished.connect(self.edited)
form.addRow("Number of genes:", self.n_genes_spin)
self.layout().addLayout(form)
disp_b = QRadioButton("Dispersion", checked=True)
vari_b = QRadioButton("Variance")
mean_b = QRadioButton("Mean")
self.group = QButtonGroup()
self.group.buttonClicked.connect(self._on_button_clicked)
for i, button in enumerate([disp_b, vari_b, mean_b]):
index = index_to_enum(SelectMostVariableGenes.Method, i).value
self.group.addButton(button, index - 1)
form.addRow(button)
self.stats_check = QCheckBox("Compute statistics for",
checked=self.DEFAULT_COMPUTE_STATS)
self.stats_check.clicked.connect(self.edited)
self.n_groups_spin = QSpinBox(minimum=1, value=self._n_groups)
self.n_groups_spin.valueChanged[int].connect(self._set_n_groups)
self.n_groups_spin.editingFinished.connect(self.edited)
box = QHBoxLayout()
box.addWidget(self.stats_check)
box.addWidget(self.n_groups_spin)
box.addWidget(QLabel("gene groups."))
box.addStretch()
self.layout().addLayout(box)
def __init__(self, parent=None, **kwargs):
super().__init__(parent, **kwargs)
self.setLayout(QVBoxLayout())
self.__treatment = Continuize.Indicators
self.__group = group = QButtonGroup(exclusive=True)
group.buttonClicked.connect(self.__on_buttonClicked)
for treatment, text in ContinuizeEditor.Continuizers.items():
rb = QRadioButton(text=text, checked=self.__treatment == treatment)
group.addButton(rb, enum_to_index(ContinuizeEditor._Type,
treatment))
self.layout().addWidget(rb)
self.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed)
def __init__(self, tree, dataset, master, parent=None):
QWidget.__init__(self, parent)
Control.__init__(self, tree, dataset, master)
self.setLayout(QVBoxLayout())
self.buttonGroup = QButtonGroup(self)
self.values = []
for i, option in enumerate(tree.subelements_top("Option")):
rb = QRadioButton(option.displayName, self)
self.buttonGroup.addButton(rb)
self.buttonGroup.setId(rb, i)
self.layout().addWidget(rb)
self.values.append(option.value)
self.buttonGroup.button(0).setChecked(True)
def setup_method_layout(self):
self.group = QButtonGroup(self, exclusive=True)
if self.initialize_methods:
self.methods = [method() for method in self.methods]
for i, method in enumerate(self.methods):
rb = QRadioButton(self, text=self.textify(method.name))
rb.setChecked(i == self.method_index)
rb.setToolTip(self.get_tooltip(method))
self.group.addButton(rb, i)
self.method_layout.addWidget(rb, i, 0)
self.group.buttonClicked.connect(self.update_value)
def __init__(self, parent=None, **kwargs):
super().__init__(parent, **kwargs)
self.setLayout(QVBoxLayout())
self.__method = Scale.NormalizeBySD
self.__group = group = QButtonGroup(self, exclusive=True)
group.buttonClicked.connect(self.__on_buttonClicked)
for methodid in [self.NormalizeBySD, self.CenterByMean, self.ScaleBySD,
self.NormalizeSpan_NonZeroBased,
self.NormalizeBySpan_ZeroBased]:
text = self.Names[methodid]
rb = QRadioButton(text=text, checked=self.__method == methodid)
group.addButton(rb, methodid)
self.layout().addWidget(rb)
def __init__(self, parent=None, **kwargs):
super().__init__(parent, **kwargs)
self.setLayout(QVBoxLayout())
self.__strategy = RandomFeatureSelectEditor.Fixed
self.__k = 10
self.__p = 75.0
box = QGroupBox(title="Strategy", flat=True)
self.__group = group = QButtonGroup(self, exclusive=True)
self.__spins = {}
form = QFormLayout()
fixedrb = QRadioButton("Fixed", checked=True)
group.addButton(fixedrb, RandomFeatureSelectEditor.Fixed)
kspin = QSpinBox(
minimum=1,
value=self.__k,
enabled=self.__strategy == RandomFeatureSelectEditor.Fixed,
)
kspin.valueChanged[int].connect(self.setK)
kspin.editingFinished.connect(self.edited)
self.__spins[RandomFeatureSelectEditor.Fixed] = kspin
form.addRow(fixedrb, kspin)
percrb = QRadioButton("Percentage")
group.addButton(percrb, RandomFeatureSelectEditor.Percentage)
pspin = QDoubleSpinBox(
minimum=0.0,
maximum=100.0,
singleStep=0.5,
value=self.__p,
suffix="%",
enabled=self.__strategy == RandomFeatureSelectEditor.Percentage,
)
pspin.valueChanged[float].connect(self.setP)
pspin.editingFinished.connect(self.edited)
self.__spins[RandomFeatureSelectEditor.Percentage] = pspin
form.addRow(percrb, pspin)
self.__group.buttonClicked.connect(self.__on_buttonClicked)
box.setLayout(form)
self.layout().addWidget(box)
def __init__(self, parent=None, **kwargs):
BaseEditor.__init__(self, parent, **kwargs)
self.__method = DiscretizeEditor.EqualFreq
self.__nintervals = 4
layout = QVBoxLayout()
self.setLayout(layout)
self.__group = group = QButtonGroup(self, exclusive=True)
for method in [
self.EntropyMDL, self.EqualFreq, self.EqualWidth, self.Drop
]:
rb = QRadioButton(self,
text=self.Names[method],
checked=self.__method == method)
layout.addWidget(rb)
group.addButton(rb, method)
group.buttonClicked.connect(self.__on_buttonClicked)
self.__slbox = slbox = QGroupBox(
title="间隔数(等宽/等频)Number of intervals (for equal width/frequency)",
flat=True)
slbox.setLayout(QHBoxLayout())
self.__slider = slider = QSlider(orientation=Qt.Horizontal,
minimum=2,
maximum=10,
value=self.__nintervals,
enabled=self.__method
in [self.EqualFreq, self.EqualWidth],
pageStep=1,
tickPosition=QSlider.TicksBelow)
slider.valueChanged.connect(self.__on_valueChanged)
slbox.layout().addWidget(slider)
self.__slabel = slabel = QLabel()
slbox.layout().addWidget(slabel)
container = QHBoxLayout()
container.setContentsMargins(13, 0, 0, 0)
container.addWidget(slbox)
self.layout().insertLayout(3, container)
self.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Preferred)
def __init__(self):
super().__init__()
ConcurrentWidgetMixin.__init__(self)
self.corpus = None
self.learning_thread = None
self.__pending_selection = self.selection
self.perplexity = "n/a"
self.coherence = "n/a"
# Commit button
gui.auto_commit(self.buttonsArea,
self,
'autocommit',
'Commit',
box=False)
button_group = QButtonGroup(self, exclusive=True)
button_group.buttonClicked[int].connect(self.change_method)
self.widgets = []
method_layout = QVBoxLayout()
self.controlArea.layout().addLayout(method_layout)
for i, (method, attr_name) in enumerate(self.methods):
widget = method(self, title='Options')
widget.setFixedWidth(self.control_area_width)
widget.valueChanged.connect(self.commit.deferred)
self.widgets.append(widget)
setattr(self, attr_name, widget)
rb = QRadioButton(text=widget.Model.name)
button_group.addButton(rb, i)
method_layout.addWidget(rb)
method_layout.addWidget(widget)
button_group.button(self.method_index).setChecked(True)
self.toggle_widgets()
method_layout.addStretch()
box = gui.vBox(self.controlArea, "Topic evaluation")
gui.label(box, self, "Log perplexity: %(perplexity)s")
gui.label(box, self, "Topic coherence: %(coherence)s")
self.controlArea.layout().insertWidget(1, box)
# Topics description
self.topic_desc = TopicViewer()
self.topic_desc.topicSelected.connect(self.send_topic_by_id)
self.mainArea.layout().addWidget(self.topic_desc)
self.topic_desc.setFocus()
class RemoveSparseEditor(BaseEditor):
options = ["missing", "zeros"]
def __init__(self, parent=None, **kwargs):
super().__init__(parent, **kwargs)
self.fixedThresh = 50
self.percThresh = 5
self.useFixedThreshold = False
self.filter0 = True
self.setLayout(QVBoxLayout())
self.layout().addWidget(QLabel("Remove features with too many"))
options = ["missing values", "zeros"]
self.filter_buttons = QButtonGroup(exclusive=True)
self.filter_buttons.buttonClicked.connect(self.filterByClicked)
for idx, option, in enumerate(options):
btn = QRadioButton(self, text=option, checked=idx == 0)
self.filter_buttons.addButton(btn, id=idx)
self.layout().addWidget(btn)
self.layout().addSpacing(20)
filter_settings = QGroupBox(title='Threshold:', flat=True)
filter_settings.setLayout(QFormLayout())
self.settings_buttons = QButtonGroup(exclusive=True)
self.settings_buttons.buttonClicked.connect(self.filterSettingsClicked)
btn_perc = QRadioButton(self,
text='Percentage',
checked=not self.useFixedThreshold)
self.settings_buttons.addButton(btn_perc, id=0)
self.percSpin = QSpinBox(minimum=0,
maximum=100,
value=self.percThresh,
enabled=not self.useFixedThreshold)
self.percSpin.valueChanged[int].connect(self.setPercThresh)
self.percSpin.editingFinished.connect(self.edited)
btn_fix = QRadioButton(self,
text='Fixed',
checked=self.useFixedThreshold)
self.settings_buttons.addButton(btn_fix, id=1)
self.fixedSpin = QSpinBox(minimum=0,
maximum=1000000,
value=self.fixedThresh,
enabled=self.useFixedThreshold)
self.fixedSpin.valueChanged[int].connect(self.setFixedThresh)
self.fixedSpin.editingFinished.connect(self.edited)
filter_settings.layout().addRow(btn_fix, self.fixedSpin)
filter_settings.layout().addRow(btn_perc, self.percSpin)
self.layout().addWidget(filter_settings)
def filterSettingsClicked(self):
self.setUseFixedThreshold(self.settings_buttons.checkedId())
self.percSpin.setEnabled(not self.useFixedThreshold)
self.fixedSpin.setEnabled(self.useFixedThreshold)
self.edited.emit()
def filterByClicked(self):
self.setFilter0(self.filter_buttons.checkedId())
def setFilter0(self, id_):
if self.filter0 != id_:
self.filter0 = id_
self.edited.emit()
def setFixedThresh(self, thresh):
if self.fixedThresh != thresh:
self.fixedThresh = thresh
self.fixedSpin.setValue(thresh)
self.edited.emit()
def setPercThresh(self, thresh):
if self.percThresh != thresh:
self.percThresh = thresh
self.percSpin.setValue(thresh)
self.edited.emit()
def setUseFixedThreshold(self, val):
if self.useFixedThreshold != val:
self.useFixedThreshold = val
self.edited.emit()
def parameters(self):
return {
'fixedThresh': self.fixedThresh,
'percThresh': self.percThresh,
'useFixedThreshold': self.useFixedThreshold,
'filter0': self.filter0
}
def setParameters(self, params):
self.setPercThresh(params.get('percThresh', 5))
self.setFixedThresh(params.get('fixedThresh', 50))
self.setUseFixedThreshold(params.get('useFixedThreshold', False))
self.setFilter0(params.get('filter0', True))
@staticmethod
def createinstance(params):
params = dict(params)
filter0 = params.pop('filter0', True)
useFixedThreshold = params.pop('useFixedThreshold', True)
if useFixedThreshold:
threshold = params.pop('fixedThresh', 50)
else:
threshold = params.pop('percThresh', 5) / 100
return RemoveSparse(threshold, filter0)
class TabBarWidget(QWidget):
"""
A tab bar widget using tool buttons as tabs.
"""
# TODO: A uniform size box layout.
currentChanged = Signal(int)
def __init__(self, parent=None, **kwargs):
QWidget.__init__(self, parent, **kwargs)
layout = QVBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(0)
self.setLayout(layout)
self.setSizePolicy(QSizePolicy.Fixed,
QSizePolicy.Expanding)
self.__tabs = []
self.__currentIndex = -1
self.__changeOnHover = False
self.__iconSize = QSize(26, 26)
self.__group = QButtonGroup(self, exclusive=True)
self.__group.buttonPressed[QAbstractButton].connect(
self.__onButtonPressed
)
self.setMouseTracking(True)
self.__sloppyButton = None
self.__sloppyRegion = QRegion()
self.__sloppyTimer = QTimer(self, singleShot=True)
self.__sloppyTimer.timeout.connect(self.__onSloppyTimeout)
def setChangeOnHover(self, changeOnHover):
"""
If set to ``True`` the tab widget will change the current index when
the mouse hovers over a tab button.
"""
if self.__changeOnHover != changeOnHover:
self.__changeOnHover = changeOnHover
def changeOnHover(self):
"""
Does the current tab index follow the mouse cursor.
"""
return self.__changeOnHover
def count(self):
"""
Return the number of tabs in the widget.
"""
return len(self.__tabs)
def addTab(self, text, icon=None, toolTip=None):
"""
Add a new tab and return it's index.
"""
return self.insertTab(self.count(), text, icon, toolTip)
def insertTab(self, index, text, icon=None, toolTip=None):
"""
Insert a tab at `index`
"""
button = TabButton(self, objectName="tab-button")
button.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
button.setIconSize(self.__iconSize)
button.setMouseTracking(True)
self.__group.addButton(button)
button.installEventFilter(self)
tab = _Tab(text, icon, toolTip, button, None, None)
self.layout().insertWidget(index, button)
self.__tabs.insert(index, tab)
self.__updateTab(index)
if self.currentIndex() == -1:
self.setCurrentIndex(0)
return index
def removeTab(self, index):
"""
Remove a tab at `index`.
"""
if index >= 0 and index < self.count():
self.layout().takeItem(index)
tab = self.__tabs.pop(index)
self.__group.removeButton(tab.button)
tab.button.removeEventFilter(self)
if tab.button is self.__sloppyButton:
self.__sloppyButton = None
self.__sloppyRegion = QRegion()
tab.button.deleteLater()
if self.currentIndex() == index:
if self.count():
self.setCurrentIndex(max(index - 1, 0))
else:
self.setCurrentIndex(-1)
def setTabIcon(self, index, icon):
"""
Set the `icon` for tab at `index`.
"""
self.__tabs[index] = self.__tabs[index]._replace(icon=icon)
self.__updateTab(index)
def setTabToolTip(self, index, toolTip):
"""
Set `toolTip` for tab at `index`.
"""
self.__tabs[index] = self.__tabs[index]._replace(toolTip=toolTip)
self.__updateTab(index)
def setTabText(self, index, text):
"""
Set tab `text` for tab at `index`
"""
self.__tabs[index] = self.__tabs[index]._replace(text=text)
self.__updateTab(index)
def setTabPalette(self, index, palette):
"""
Set the tab button palette.
"""
self.__tabs[index] = self.__tabs[index]._replace(palette=palette)
self.__updateTab(index)
def setCurrentIndex(self, index):
"""
Set the current tab index.
"""
if self.__currentIndex != index:
self.__currentIndex = index
self.__sloppyRegion = QRegion()
self.__sloppyButton = None
if index != -1:
self.__tabs[index].button.setChecked(True)
self.currentChanged.emit(index)
def currentIndex(self):
"""
Return the current index.
"""
return self.__currentIndex
def button(self, index):
"""
Return the `TabButton` instance for index.
"""
return self.__tabs[index].button
def setIconSize(self, size):
if self.__iconSize != size:
self.__iconSize = size
for tab in self.__tabs:
tab.button.setIconSize(self.__iconSize)
def __updateTab(self, index):
"""
Update the tab button.
"""
tab = self.__tabs[index]
b = tab.button
if tab.text:
b.setText(tab.text)
if tab.icon is not None and not tab.icon.isNull():
b.setIcon(tab.icon)
if tab.palette:
b.setPalette(tab.palette)
def __onButtonPressed(self, button):
for i, tab in enumerate(self.__tabs):
if tab.button is button:
self.setCurrentIndex(i)
break
def __calcSloppyRegion(self, current):
"""
Given a current mouse cursor position return a region of the widget
where hover/move events should change the current tab only on a
timeout.
"""
p1 = current + QPoint(0, 2)
p2 = current + QPoint(0, -2)
p3 = self.pos() + QPoint(self.width()+10, 0)
p4 = self.pos() + QPoint(self.width()+10, self.height())
return QRegion(QPolygon([p1, p2, p3, p4]))
def __setSloppyButton(self, button):
"""
Set the current sloppy button (a tab button inside sloppy region)
and reset the sloppy timeout.
"""
if not button.isChecked():
self.__sloppyButton = button
delay = self.style().styleHint(QStyle.SH_Menu_SubMenuPopupDelay, None)
# The delay timeout is the same as used by Qt in the QMenu.
self.__sloppyTimer.start(delay)
else:
self.__sloppyTimer.stop()
def __onSloppyTimeout(self):
if self.__sloppyButton is not None:
button = self.__sloppyButton
self.__sloppyButton = None
if not button.isChecked():
index = [tab.button for tab in self.__tabs].index(button)
self.setCurrentIndex(index)
def eventFilter(self, receiver, event):
if event.type() == QEvent.MouseMove and \
isinstance(receiver, TabButton):
pos = receiver.mapTo(self, event.pos())
if self.__sloppyRegion.contains(pos):
self.__setSloppyButton(receiver)
else:
if not receiver.isChecked():
index = [tab.button for tab in self.__tabs].index(receiver)
self.setCurrentIndex(index)
#also update sloppy region if mouse is moved on the same icon
self.__sloppyRegion = self.__calcSloppyRegion(pos)
return QWidget.eventFilter(self, receiver, event)
def leaveEvent(self, event):
self.__sloppyButton = None
self.__sloppyRegion = QRegion()
return QWidget.leaveEvent(self, event)
def _setup_control_area(self) -> None:
box = gui.widgetBox(self.controlArea, "Word Scoring Methods")
for value, (n, _, tt) in SCORING_METHODS.items():
b = gui.hBox(box, margin=0)
gui.checkBox(
b,
self,
value,
label=n,
callback=self.__setting_changed,
tooltip=tt,
)
if value in ADDITIONAL_OPTIONS:
value, options = ADDITIONAL_OPTIONS[value]
gui.comboBox(
b,
self,
value,
items=options,
callback=self.__setting_changed,
)
box = gui.widgetBox(self.controlArea, "Aggregation")
gui.comboBox(
box,
self,
"aggregation",
items=[n for n in AGGREGATIONS],
callback=self.__setting_changed,
)
gui.rubber(self.controlArea)
# select words box
box = gui.vBox(self.buttonsArea, "Select Documents")
grid = QGridLayout()
grid.setContentsMargins(0, 0, 0, 0)
self._sel_method_buttons = QButtonGroup()
for method, label in enumerate(SelectionMethods.ITEMS):
button = QRadioButton(label)
button.setChecked(method == self.sel_method)
grid.addWidget(button, method, 0)
self._sel_method_buttons.addButton(button, method)
self._sel_method_buttons.buttonClicked[int].connect(
self.__set_selection_method)
spin = gui.spin(
box,
self,
"n_selected",
1,
999,
addToLayout=False,
callback=lambda: self.__set_selection_method(SelectionMethods.
N_BEST),
)
grid.addWidget(spin, 3, 1)
box.layout().addLayout(grid)
# autocommit
gui.auto_send(self.buttonsArea, self, "auto_commit")
def __init__(self):
super().__init__()
self.measure_scores = None
self.update_scores = True
self.usefulAttributes = []
self.learners = {}
self.labels = []
self.out_domain_desc = None
self.all_measures = SCORES
self.selectedMeasures = dict([(m.name, True) for m
in self.all_measures])
# Discrete (0) or continuous (1) class mode
self.rankMode = 0
self.data = None
self.discMeasures = [m for m in self.all_measures if
issubclass(DiscreteVariable, m.score.class_type)]
self.contMeasures = [m for m in self.all_measures if
issubclass(ContinuousVariable, m.score.class_type)]
self.score_checks = []
self.cls_scoring_box = gui.vBox(None, "Scoring for Classification")
self.reg_scoring_box = gui.vBox(None, "Scoring for Regression")
boxes = [self.cls_scoring_box] * 7 + [self.reg_scoring_box] * 2
for _score, var, box in zip(SCORES, self._score_vars, boxes):
check = gui.checkBox(
box, self, var, label=_score.name,
callback=lambda val=_score: self.measuresSelectionChanged(val))
self.score_checks.append(check)
self.score_stack = QStackedWidget(self)
self.score_stack.addWidget(self.cls_scoring_box)
self.score_stack.addWidget(self.reg_scoring_box)
self.score_stack.addWidget(QWidget())
self.controlArea.layout().addWidget(self.score_stack)
gui.rubber(self.controlArea)
selMethBox = gui.vBox(
self.controlArea, "Select Attributes", addSpace=True)
grid = QGridLayout()
grid.setContentsMargins(6, 0, 6, 0)
self.selectButtons = QButtonGroup()
self.selectButtons.buttonClicked[int].connect(self.setSelectMethod)
def button(text, buttonid, toolTip=None):
b = QRadioButton(text)
self.selectButtons.addButton(b, buttonid)
if toolTip is not None:
b.setToolTip(toolTip)
return b
b1 = button(self.tr("None"), OWRank.SelectNone)
b2 = button(self.tr("All"), OWRank.SelectAll)
b3 = button(self.tr("Manual"), OWRank.SelectManual)
b4 = button(self.tr("Best ranked:"), OWRank.SelectNBest)
s = gui.spin(selMethBox, self, "nSelected", 1, 100,
callback=self.nSelectedChanged)
grid.addWidget(b1, 0, 0)
grid.addWidget(b2, 1, 0)
grid.addWidget(b3, 2, 0)
grid.addWidget(b4, 3, 0)
grid.addWidget(s, 3, 1)
self.selectButtons.button(self.selectMethod).setChecked(True)
selMethBox.layout().addLayout(grid)
gui.auto_commit(selMethBox, self, "auto_apply", "Send", box=False)
# Discrete, continuous and no_class table views are stacked
self.ranksViewStack = QStackedLayout()
self.mainArea.layout().addLayout(self.ranksViewStack)
self.discRanksView = QTableView()
self.ranksViewStack.addWidget(self.discRanksView)
self.discRanksView.setSelectionBehavior(QTableView.SelectRows)
self.discRanksView.setSelectionMode(QTableView.MultiSelection)
self.discRanksView.setSortingEnabled(True)
self.discRanksLabels = ["#"] + [m.shortname for m in self.discMeasures]
self.discRanksModel = QStandardItemModel(self)
self.discRanksModel.setHorizontalHeaderLabels(self.discRanksLabels)
self.discRanksProxyModel = MySortProxyModel(self)
self.discRanksProxyModel.setSourceModel(self.discRanksModel)
self.discRanksView.setModel(self.discRanksProxyModel)
self.discRanksView.setColumnWidth(0, 20)
self.discRanksView.selectionModel().selectionChanged.connect(
self.commit
)
self.discRanksView.pressed.connect(self.onSelectItem)
self.discRanksView.horizontalHeader().sectionClicked.connect(
self.headerClick
)
self.discRanksView.verticalHeader().sectionClicked.connect(
self.onSelectItem
)
if self.headerState[0] is not None:
self.discRanksView.horizontalHeader().restoreState(
self.headerState[0])
self.contRanksView = QTableView()
self.ranksViewStack.addWidget(self.contRanksView)
self.contRanksView.setSelectionBehavior(QTableView.SelectRows)
self.contRanksView.setSelectionMode(QTableView.MultiSelection)
self.contRanksView.setSortingEnabled(True)
self.contRanksLabels = ["#"] + [m.shortname for m in self.contMeasures]
self.contRanksModel = QStandardItemModel(self)
self.contRanksModel.setHorizontalHeaderLabels(self.contRanksLabels)
self.contRanksProxyModel = MySortProxyModel(self)
self.contRanksProxyModel.setSourceModel(self.contRanksModel)
self.contRanksView.setModel(self.contRanksProxyModel)
self.contRanksView.setColumnWidth(0, 20)
self.contRanksView.selectionModel().selectionChanged.connect(
self.commit
)
self.contRanksView.pressed.connect(self.onSelectItem)
self.contRanksView.horizontalHeader().sectionClicked.connect(
self.headerClick
)
self.contRanksView.verticalHeader().sectionClicked.connect(
self.onSelectItem
)
if self.headerState[1] is not None:
self.contRanksView.horizontalHeader().restoreState(
self.headerState[1])
self.noClassRanksView = QTableView()
self.ranksViewStack.addWidget(self.noClassRanksView)
self.noClassRanksView.setSelectionBehavior(QTableView.SelectRows)
self.noClassRanksView.setSelectionMode(QTableView.MultiSelection)
self.noClassRanksView.setSortingEnabled(True)
self.noClassRanksLabels = ["#"]
self.noClassRanksModel = QStandardItemModel(self)
self.noClassRanksModel.setHorizontalHeaderLabels(self.noClassRanksLabels)
self.noClassRanksProxyModel = MySortProxyModel(self)
self.noClassRanksProxyModel.setSourceModel(self.noClassRanksModel)
self.noClassRanksView.setModel(self.noClassRanksProxyModel)
self.noClassRanksView.setColumnWidth(0, 20)
self.noClassRanksView.selectionModel().selectionChanged.connect(
self.commit
)
self.noClassRanksView.pressed.connect(self.onSelectItem)
self.noClassRanksView.horizontalHeader().sectionClicked.connect(
self.headerClick
)
self.noClassRanksView.verticalHeader().sectionClicked.connect(
self.onSelectItem
)
if self.headerState[2] is not None:
self.noClassRanksView.horizontalHeader().restoreState(
self.headerState[2])
# Switch the current view to Discrete
self.switchRanksMode(0)
self.resetInternals()
self.updateDelegates()
self.updateVisibleScoreColumns()
self.resize(690, 500)
self.measure_scores = table((len(self.measures), 0), None)
class OWRank(OWWidget):
name = "Rank"
description = "Rank and filter data features by their relevance."
icon = "icons/Rank.svg"
priority = 1102
buttons_area_orientation = Qt.Vertical
inputs = [("Data", Table, "setData"),
("Scorer", score.Scorer, "set_learner", widget.Multiple)]
outputs = [("Reduced Data", Table, widget.Default), ("Scores", Table)]
SelectNone, SelectAll, SelectManual, SelectNBest = range(4)
cls_default_selected = Setting({"Gain Ratio", "Gini Decrease"})
reg_default_selected = Setting({"Univariate Linear Regression", "RReliefF"})
selectMethod = Setting(SelectNBest)
nSelected = Setting(5)
auto_apply = Setting(True)
# Header state for discrete/continuous/no_class scores
headerState = Setting([None, None, None])
settings_version = 1
settingsHandler = DomainContextHandler()
selected_rows = ContextSetting([])
gain = inf_gain = gini = anova = chi2 = ulr = relief = rrelief = fcbc = True
_score_vars = ["gain", "inf_gain", "gini", "anova", "chi2", "relief",
"fcbc", "ulr", "rrelief"]
class Warning(OWWidget.Warning):
no_target_var = Msg("Data does not have a target variable")
class Error(OWWidget.Error):
invalid_type = Msg("Cannot handle target variable type {}")
inadequate_learner = Msg("{}")
def __init__(self):
super().__init__()
self.measure_scores = None
self.update_scores = True
self.usefulAttributes = []
self.learners = {}
self.labels = []
self.out_domain_desc = None
self.all_measures = SCORES
self.selectedMeasures = dict([(m.name, True) for m
in self.all_measures])
# Discrete (0) or continuous (1) class mode
self.rankMode = 0
self.data = None
self.discMeasures = [m for m in self.all_measures if
issubclass(DiscreteVariable, m.score.class_type)]
self.contMeasures = [m for m in self.all_measures if
issubclass(ContinuousVariable, m.score.class_type)]
self.score_checks = []
self.cls_scoring_box = gui.vBox(None, "Scoring for Classification")
self.reg_scoring_box = gui.vBox(None, "Scoring for Regression")
boxes = [self.cls_scoring_box] * 7 + [self.reg_scoring_box] * 2
for _score, var, box in zip(SCORES, self._score_vars, boxes):
check = gui.checkBox(
box, self, var, label=_score.name,
callback=lambda val=_score: self.measuresSelectionChanged(val))
self.score_checks.append(check)
self.score_stack = QStackedWidget(self)
self.score_stack.addWidget(self.cls_scoring_box)
self.score_stack.addWidget(self.reg_scoring_box)
self.score_stack.addWidget(QWidget())
self.controlArea.layout().addWidget(self.score_stack)
gui.rubber(self.controlArea)
selMethBox = gui.vBox(
self.controlArea, "Select Attributes", addSpace=True)
grid = QGridLayout()
grid.setContentsMargins(6, 0, 6, 0)
self.selectButtons = QButtonGroup()
self.selectButtons.buttonClicked[int].connect(self.setSelectMethod)
def button(text, buttonid, toolTip=None):
b = QRadioButton(text)
self.selectButtons.addButton(b, buttonid)
if toolTip is not None:
b.setToolTip(toolTip)
return b
b1 = button(self.tr("None"), OWRank.SelectNone)
b2 = button(self.tr("All"), OWRank.SelectAll)
b3 = button(self.tr("Manual"), OWRank.SelectManual)
b4 = button(self.tr("Best ranked:"), OWRank.SelectNBest)
s = gui.spin(selMethBox, self, "nSelected", 1, 100,
callback=self.nSelectedChanged)
grid.addWidget(b1, 0, 0)
grid.addWidget(b2, 1, 0)
grid.addWidget(b3, 2, 0)
grid.addWidget(b4, 3, 0)
grid.addWidget(s, 3, 1)
self.selectButtons.button(self.selectMethod).setChecked(True)
selMethBox.layout().addLayout(grid)
gui.auto_commit(selMethBox, self, "auto_apply", "Send", box=False)
# Discrete, continuous and no_class table views are stacked
self.ranksViewStack = QStackedLayout()
self.mainArea.layout().addLayout(self.ranksViewStack)
self.discRanksView = QTableView()
self.ranksViewStack.addWidget(self.discRanksView)
self.discRanksView.setSelectionBehavior(QTableView.SelectRows)
self.discRanksView.setSelectionMode(QTableView.MultiSelection)
self.discRanksView.setSortingEnabled(True)
self.discRanksLabels = ["#"] + [m.shortname for m in self.discMeasures]
self.discRanksModel = QStandardItemModel(self)
self.discRanksModel.setHorizontalHeaderLabels(self.discRanksLabels)
self.discRanksProxyModel = MySortProxyModel(self)
self.discRanksProxyModel.setSourceModel(self.discRanksModel)
self.discRanksView.setModel(self.discRanksProxyModel)
self.discRanksView.setColumnWidth(0, 20)
self.discRanksView.selectionModel().selectionChanged.connect(
self.commit
)
self.discRanksView.pressed.connect(self.onSelectItem)
self.discRanksView.horizontalHeader().sectionClicked.connect(
self.headerClick
)
self.discRanksView.verticalHeader().sectionClicked.connect(
self.onSelectItem
)
if self.headerState[0] is not None:
self.discRanksView.horizontalHeader().restoreState(
self.headerState[0])
self.contRanksView = QTableView()
self.ranksViewStack.addWidget(self.contRanksView)
self.contRanksView.setSelectionBehavior(QTableView.SelectRows)
self.contRanksView.setSelectionMode(QTableView.MultiSelection)
self.contRanksView.setSortingEnabled(True)
self.contRanksLabels = ["#"] + [m.shortname for m in self.contMeasures]
self.contRanksModel = QStandardItemModel(self)
self.contRanksModel.setHorizontalHeaderLabels(self.contRanksLabels)
self.contRanksProxyModel = MySortProxyModel(self)
self.contRanksProxyModel.setSourceModel(self.contRanksModel)
self.contRanksView.setModel(self.contRanksProxyModel)
self.contRanksView.setColumnWidth(0, 20)
self.contRanksView.selectionModel().selectionChanged.connect(
self.commit
)
self.contRanksView.pressed.connect(self.onSelectItem)
self.contRanksView.horizontalHeader().sectionClicked.connect(
self.headerClick
)
self.contRanksView.verticalHeader().sectionClicked.connect(
self.onSelectItem
)
if self.headerState[1] is not None:
self.contRanksView.horizontalHeader().restoreState(
self.headerState[1])
self.noClassRanksView = QTableView()
self.ranksViewStack.addWidget(self.noClassRanksView)
self.noClassRanksView.setSelectionBehavior(QTableView.SelectRows)
self.noClassRanksView.setSelectionMode(QTableView.MultiSelection)
self.noClassRanksView.setSortingEnabled(True)
self.noClassRanksLabels = ["#"]
self.noClassRanksModel = QStandardItemModel(self)
self.noClassRanksModel.setHorizontalHeaderLabels(self.noClassRanksLabels)
self.noClassRanksProxyModel = MySortProxyModel(self)
self.noClassRanksProxyModel.setSourceModel(self.noClassRanksModel)
self.noClassRanksView.setModel(self.noClassRanksProxyModel)
self.noClassRanksView.setColumnWidth(0, 20)
self.noClassRanksView.selectionModel().selectionChanged.connect(
self.commit
)
self.noClassRanksView.pressed.connect(self.onSelectItem)
self.noClassRanksView.horizontalHeader().sectionClicked.connect(
self.headerClick
)
self.noClassRanksView.verticalHeader().sectionClicked.connect(
self.onSelectItem
)
if self.headerState[2] is not None:
self.noClassRanksView.horizontalHeader().restoreState(
self.headerState[2])
# Switch the current view to Discrete
self.switchRanksMode(0)
self.resetInternals()
self.updateDelegates()
self.updateVisibleScoreColumns()
self.resize(690, 500)
self.measure_scores = table((len(self.measures), 0), None)
def switchRanksMode(self, index):
"""
Switch between discrete/continuous/no_class mode
"""
self.rankMode = index
self.ranksViewStack.setCurrentIndex(index)
if index == 0:
self.ranksView = self.discRanksView
self.ranksModel = self.discRanksModel
self.ranksProxyModel = self.discRanksProxyModel
self.measures = self.discMeasures
self.selected_checks = self.cls_default_selected
self.reg_scoring_box.setSizePolicy(QSizePolicy.Ignored,
QSizePolicy.Ignored)
self.cls_scoring_box.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
elif index == 1:
self.ranksView = self.contRanksView
self.ranksModel = self.contRanksModel
self.ranksProxyModel = self.contRanksProxyModel
self.measures = self.contMeasures
self.selected_checks = self.reg_default_selected
self.cls_scoring_box.setSizePolicy(QSizePolicy.Ignored,
QSizePolicy.Ignored)
self.reg_scoring_box.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
else:
self.ranksView = self.noClassRanksView
self.ranksModel = self.noClassRanksModel
self.ranksProxyModel = self.noClassRanksProxyModel
self.measures = []
self.selected_checks = set()
self.reg_scoring_box.setSizePolicy(QSizePolicy.Ignored,
QSizePolicy.Ignored)
self.cls_scoring_box.setSizePolicy(QSizePolicy.Ignored,
QSizePolicy.Ignored)
shape = (len(self.measures) + len(self.learners), 0)
self.measure_scores = table(shape, None)
self.update_scores = False
for check, score in zip(self.score_checks, SCORES):
check.setChecked(score.name in self.selected_checks)
self.update_scores = True
self.score_stack.setCurrentIndex(index)
self.updateVisibleScoreColumns()
@check_sql_input
def setData(self, data):
self.closeContext()
self.clear_messages()
self.resetInternals()
self.data = data
self.switchRanksMode(0)
if self.data is not None:
domain = self.data.domain
attrs = domain.attributes
self.usefulAttributes = [attr for attr in attrs
if attr.is_discrete or attr.is_continuous]
if domain.has_continuous_class:
self.switchRanksMode(1)
elif not domain.class_var:
self.Warning.no_target_var()
self.switchRanksMode(2)
elif not domain.has_discrete_class:
self.Error.invalid_type(type(domain.class_var).__name__)
if issparse(self.data.X): # keep only measures supporting sparse data
self.measures = [m for m in self.measures
if m.score.supports_sparse_data]
self.ranksModel.setRowCount(len(attrs))
for i, a in enumerate(attrs):
if a.is_discrete:
v = len(a.values)
else:
v = "C"
item = ScoreValueItem()
item.setData(v, Qt.DisplayRole)
self.ranksModel.setItem(i, 0, item)
item = QStandardItem(a.name)
item.setData(gui.attributeIconDict[a], Qt.DecorationRole)
self.ranksModel.setVerticalHeaderItem(i, item)
shape = (len(self.measures) + len(self.learners), len(attrs))
self.measure_scores = table(shape, None)
self.updateScores()
else:
self.send("Scores", None)
self.selected_rows = []
self.openContext(data)
self.selectMethodChanged()
self.commit()
def get_selection(self):
selection = self.ranksView.selectionModel().selection()
return list(set(ind.row() for ind in selection.indexes()))
def set_learner(self, learner, lid=None):
if learner is None and lid is not None:
del self.learners[lid]
elif learner is not None:
self.learners[lid] = score_meta(
learner.name,
learner.name,
learner
)
attrs_len = 0 if not self.data else len(self.data.domain.attributes)
shape = (len(self.learners), attrs_len)
self.measure_scores = self.measure_scores[:len(self.measures)]
self.measure_scores += table(shape, None)
self.contRanksModel.setHorizontalHeaderLabels(self.contRanksLabels)
self.discRanksModel.setHorizontalHeaderLabels(self.discRanksLabels)
self.noClassRanksModel.setHorizontalHeaderLabels(
self.noClassRanksLabels)
measures_mask = [False] * len(self.measures)
measures_mask += [True for _ in self.learners]
self.updateScores(measures_mask)
self.commit()
def updateScores(self, measuresMask=None):
"""
Update the current computed scores.
If `measuresMask` is given it must be an list of bool values
indicating what measures should be recomputed.
"""
if not self.data:
return
if self.data.has_missing():
self.information("Missing values have been imputed.")
measures = self.measures + [v for k, v in self.learners.items()]
if measuresMask is None:
# Update all selected measures
measuresMask = [self.selectedMeasures.get(m.name)
for m in self.measures]
measuresMask = measuresMask + [v.name for k, v in
self.learners.items()]
data = self.data
learner_col = len(self.measures)
if len(measuresMask) <= len(self.measures) or \
measuresMask[len(self.measures)]:
self.labels = []
self.Error.inadequate_learner.clear()
self.setStatusMessage("Running")
with self.progressBar():
n_measure_update = len([x for x in measuresMask if x is not False])
count = 0
for index, (meas, mask) in enumerate(zip(measures, measuresMask)):
if not mask:
continue
self.progressBarSet(90 * count / n_measure_update)
count += 1
if index < len(self.measures):
estimator = meas.score()
try:
self.measure_scores[index] = estimator(data)
except ValueError:
self.measure_scores[index] = []
for attr in data.domain.attributes:
try:
self.measure_scores[index].append(
estimator(data, attr))
except ValueError:
self.measure_scores[index].append(None)
else:
learner = meas.score
if isinstance(learner, Learner) and \
not learner.check_learner_adequacy(self.data.domain):
self.Error.inadequate_learner(
learner.learner_adequacy_err_msg)
scores = table((1, len(data.domain.attributes)))
else:
scores = meas.score.score_data(data)
for i, row in enumerate(scores):
self.labels.append(meas.shortname + str(i + 1))
if len(self.measure_scores) > learner_col:
self.measure_scores[learner_col] = row
else:
self.measure_scores.append(row)
learner_col += 1
self.progressBarSet(90)
self.contRanksModel.setHorizontalHeaderLabels(
self.contRanksLabels + self.labels
)
self.discRanksModel.setHorizontalHeaderLabels(
self.discRanksLabels + self.labels
)
self.noClassRanksModel.setHorizontalHeaderLabels(
self.noClassRanksLabels + self.labels
)
self.updateRankModel(measuresMask)
self.ranksProxyModel.invalidate()
self.selectMethodChanged()
self.send("Scores", self.create_scores_table(self.labels))
self.setStatusMessage("")
def updateRankModel(self, measuresMask):
"""
Update the rankModel.
"""
values = []
diff = len(self.measure_scores) - len(measuresMask)
if len(measuresMask):
measuresMask += [measuresMask[-1]] * diff
for i in range(self.ranksModel.columnCount() - 1,
len(self.measure_scores), -1):
self.ranksModel.removeColumn(i)
for i, (scores, m) in enumerate(zip(self.measure_scores, measuresMask)):
if not m and self.ranksModel.item(0, i + 1):
values.append([])
continue
values_one = []
for j, _score in enumerate(scores):
values_one.append(_score)
item = self.ranksModel.item(j, i + 1)
if not item:
item = ScoreValueItem()
self.ranksModel.setItem(j, i + 1, item)
item.setData(_score, Qt.DisplayRole)
values.append(values_one)
for i, (vals, m) in enumerate(zip(values, measuresMask)):
if not m:
continue
valid_vals = [v for v in vals if v is not None]
if valid_vals:
vmin, vmax = min(valid_vals), max(valid_vals)
for j, v in enumerate(vals):
if v is not None:
# Set the bar ratio role for i-th measure.
ratio = float((v - vmin) / ((vmax - vmin) or 1))
item = self.ranksModel.item(j, i + 1)
item.setData(ratio, gui.BarRatioRole)
self.ranksView.setColumnWidth(0, 20)
self.ranksView.resizeRowsToContents()
def resetInternals(self):
self.data = None
self.usefulAttributes = []
self.ranksModel.setRowCount(0)
def onSelectItem(self, index):
"""
Called when the user selects/unselects an item in the table view.
"""
self.selectMethod = OWRank.SelectManual # Manual
self.selectButtons.button(self.selectMethod).setChecked(True)
self.commit()
def setSelectMethod(self, method):
if self.selectMethod != method:
self.selectMethod = method
self.selectButtons.button(method).setChecked(True)
self.selectMethodChanged()
def selectMethodChanged(self):
self.autoSelection()
self.ranksView.setFocus()
def nSelectedChanged(self):
self.selectMethod = OWRank.SelectNBest
self.selectButtons.button(self.selectMethod).setChecked(True)
self.selectMethodChanged()
def autoSelection(self):
selModel = self.ranksView.selectionModel()
rowCount = self.ranksModel.rowCount()
columnCount = self.ranksModel.columnCount()
model = self.ranksProxyModel
if self.selectMethod == OWRank.SelectNone:
selection = QItemSelection()
elif self.selectMethod == OWRank.SelectAll:
selection = QItemSelection(
model.index(0, 0),
model.index(rowCount - 1, columnCount - 1)
)
elif self.selectMethod == OWRank.SelectNBest:
nSelected = min(self.nSelected, rowCount)
selection = QItemSelection(
model.index(0, 0),
model.index(nSelected - 1, columnCount - 1)
)
else:
selection = QItemSelection()
if len(self.selected_rows):
selection = QItemSelection()
for row in self.selected_rows:
selection.append(QItemSelectionRange(
model.index(row, 0), model.index(row, columnCount - 1)))
selModel.select(selection, QItemSelectionModel.ClearAndSelect)
def headerClick(self, index):
if index >= 1 and self.selectMethod == OWRank.SelectNBest:
# Reselect the top ranked attributes
self.autoSelection()
# Store the header states
disc = bytes(self.discRanksView.horizontalHeader().saveState())
cont = bytes(self.contRanksView.horizontalHeader().saveState())
no_class = bytes(self.noClassRanksView.horizontalHeader().saveState())
self.headerState = [disc, cont, no_class]
def measuresSelectionChanged(self, measure):
"""Measure selection has changed. Update column visibility.
"""
checked = self.selectedMeasures[measure.name]
self.selectedMeasures[measure.name] = not checked
if not checked:
self.selected_checks.add(measure.name)
elif measure.name in self.selected_checks:
self.selected_checks.remove(measure.name)
measures_mask = [False] * len(self.measures)
measures_mask += [False for _ in self.learners]
# Update scores for shown column if they are not yet computed.
if measure in self.measures and self.measure_scores:
index = self.measures.index(measure)
if all(s is None for s in self.measure_scores[index]):
measures_mask[index] = True
if self.update_scores:
self.updateScores(measures_mask)
self.updateVisibleScoreColumns()
def updateVisibleScoreColumns(self):
"""
Update the visible columns of the scores view.
"""
for i, measure in enumerate(self.measures):
shown = self.selectedMeasures.get(measure.name)
self.ranksView.setColumnHidden(i + 1, not shown)
self.ranksView.setColumnWidth(i + 1, 100)
index = self.ranksView.horizontalHeader().sortIndicatorSection()
if self.ranksView.isColumnHidden(index):
self.headerState[self.rankMode] = None
if self.headerState[self.rankMode] is None:
def get_sort_by_col(measures, selected_measures):
cols = [i + 1 for i, m in enumerate(measures) if
m.name in selected_measures]
return cols[0] if cols else len(measures) + 1
col = get_sort_by_col(self.measures, self.selected_checks)
self.ranksView.sortByColumn(col, Qt.DescendingOrder)
self.autoSelection()
def updateDelegates(self):
self.contRanksView.setItemDelegate(gui.ColoredBarItemDelegate(self))
self.discRanksView.setItemDelegate(gui.ColoredBarItemDelegate(self))
self.noClassRanksView.setItemDelegate(gui.ColoredBarItemDelegate(self))
def send_report(self):
if not self.data:
return
self.report_domain("Input", self.data.domain)
self.report_table("Ranks", self.ranksView, num_format="{:.3f}")
if self.out_domain_desc is not None:
self.report_items("Output", self.out_domain_desc)
def commit(self):
self.selected_rows = self.get_selection()
if self.data and len(self.data.domain.attributes) == len(
self.selected_rows):
self.selectMethod = OWRank.SelectAll
self.selectButtons.button(self.selectMethod).setChecked(True)
selected = self.selectedAttrs()
if not self.data or not selected:
self.send("Reduced Data", None)
self.out_domain_desc = None
else:
data = Table(Domain(selected, self.data.domain.class_var,
self.data.domain.metas), self.data)
self.send("Reduced Data", data)
self.out_domain_desc = report.describe_domain(data.domain)
def selectedAttrs(self):
if self.data:
inds = self.ranksView.selectionModel().selectedRows(0)
source = self.ranksProxyModel.mapToSource
inds = map(source, inds)
inds = [ind.row() for ind in inds]
return [self.data.domain.attributes[i] for i in inds]
else:
return []
def create_scores_table(self, labels):
indices = [i for i, m in enumerate(self.measures)
if self.selectedMeasures.get(m.name, False)]
measures = [s.name for s in self.measures if
self.selectedMeasures.get(s.name, False)]
measures += [label for label in labels]
if not measures:
return None
features = [ContinuousVariable(s) for s in measures]
metas = [StringVariable("Feature name")]
domain = Domain(features, metas=metas)
scores = np.array([row for i, row in enumerate(self.measure_scores)
if i in indices or i >= len(self.measures)]).T
feature_names = np.array([a.name for a in self.data.domain.attributes])
# Reshape to 2d array as Table does not like 1d arrays
feature_names = feature_names[:, None]
new_table = Table(domain, scores, metas=feature_names)
new_table.name = "Feature Scores"
return new_table
@classmethod
def migrate_settings(cls, settings, version):
if not version:
# Before fc5caa1e1d716607f1f5c4e0b0be265c23280fa0
# headerState had length 2
headerState = settings.get("headerState", None)
if headerState is not None and \
isinstance(headerState, tuple) and \
len(headerState) < 3:
headerState = (list(headerState) + [None] * 3)[:3]
settings["headerState"] = headerState
def __init__(self):
super().__init__()
self.data = None # type: Optional[Orange.data.Table]
self._state = None # type: Optional[_FilterData]
box = gui.widgetBox(self.controlArea, "Info")
self._info = QLabel(box, wordWrap=True)
self._info.setText("No data in input\n")
box.layout().addWidget(self._info)
box = gui.widgetBox(self.controlArea, "Filter Type", spacing=-1)
rbg = QButtonGroup(box, exclusive=True)
layout = QHBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
for id_ in [Cells, Genes, Data]:
name, _, tip = FilterInfo[id_]
b = QRadioButton(name,
toolTip=tip,
checked=id_ == self.selected_filter_type)
rbg.addButton(b, id_)
layout.addWidget(b, stretch=10, alignment=Qt.AlignCenter)
box.layout().addLayout(layout)
rbg.buttonClicked[int].connect(self.set_filter_type)
self.filter_metric_cb = gui.comboBox(
box,
self,
"selected_filter_metric",
callback=self._update_metric,
enabled=self.selected_filter_type != Data)
for id_ in [DetectionCount, TotalCounts]:
text, ttip = MeasureInfo[id_]
self.filter_metric_cb.addItem(text)
idx = self.filter_metric_cb.count() - 1
self.filter_metric_cb.setItemData(idx, ttip, Qt.ToolTipRole)
self.filter_metric_cb.setCurrentIndex(self.selected_filter_metric)
form = QFormLayout(labelAlignment=Qt.AlignLeft,
formAlignment=Qt.AlignLeft,
fieldGrowthPolicy=QFormLayout.AllNonFixedFieldsGrow)
self._filter_box = box = gui.widgetBox(
self.controlArea, "Filter", orientation=form) # type: QGroupBox
self.threshold_stacks = (
QStackedWidget(enabled=self.limit_lower_enabled),
QStackedWidget(enabled=self.limit_upper_enabled),
)
finfo = np.finfo(np.float64)
for filter_ in [Cells, Genes, Data]:
if filter_ in {Cells, Genes}:
minimum = 0.0
ndecimals = 1
metric = self.selected_filter_metric
else:
minimum = finfo.min
ndecimals = 3
metric = -1
spinlower = QDoubleSpinBox(
self,
minimum=minimum,
maximum=finfo.max,
decimals=ndecimals,
keyboardTracking=False,
)
spinupper = QDoubleSpinBox(
self,
minimum=minimum,
maximum=finfo.max,
decimals=ndecimals,
keyboardTracking=False,
)
lower, upper = self.thresholds.get((filter_, metric), (0, 0))
spinlower.setValue(lower)
spinupper.setValue(upper)
self.threshold_stacks[0].addWidget(spinlower)
self.threshold_stacks[1].addWidget(spinupper)
spinlower.valueChanged.connect(self._limitchanged)
spinupper.valueChanged.connect(self._limitchanged)
self.threshold_stacks[0].setCurrentIndex(self.selected_filter_type)
self.threshold_stacks[1].setCurrentIndex(self.selected_filter_type)
self.limit_lower_enabled_cb = cb = QCheckBox(
"Min", checked=self.limit_lower_enabled)
cb.toggled.connect(self.set_lower_limit_enabled)
cb.setAttribute(Qt.WA_LayoutUsesWidgetRect, True)
form.addRow(cb, self.threshold_stacks[0])
self.limit_upper_enabled_cb = cb = QCheckBox(
"Max", checked=self.limit_upper_enabled)
cb.toggled.connect(self.set_upper_limit_enabled)
cb.setAttribute(Qt.WA_LayoutUsesWidgetRect, True)
form.addRow(cb, self.threshold_stacks[1])
box = gui.widgetBox(self.controlArea, "Plot Options")
self._showpoints = gui.checkBox(box,
self,
"display_dotplot",
"Show data points",
callback=self._update_dotplot)
self.log_scale_cb = QCheckBox("Log scale",
checked=self.scale == Scale.Log1p.name)
self.log_scale_cb.toggled[bool].connect(
lambda state: self.set_filter_scale(Scale.Log1p
if state else Scale.Linear))
box.layout().addWidget(self.log_scale_cb)
self.controlArea.layout().addStretch(10)
gui.auto_commit(self.controlArea, self, "auto_commit", "Commit")
self._view = pg.GraphicsView()
self._view.enableMouse(False)
self._view.setAntialiasing(True)
self._plot = plot = ViolinPlot()
self._plot.setDataPointsVisible(self.display_dotplot)
self._plot.setSelectionMode(
(ViolinPlot.Low if self.limit_lower_enabled else 0)
| (ViolinPlot.High if self.limit_upper_enabled else 0))
self._plot.setRange(QRectF(-1., 0., 2., 1.))
self._plot.selectionEdited.connect(self._limitchanged_plot)
self._view.setCentralWidget(self._plot)
bottom = self._plot.getAxis("bottom") # type: pg.AxisItem
bottom.hide()
plot.setMouseEnabled(False, False)
plot.hideButtons()
self.mainArea.layout().addWidget(self._view)
# Coalescing commit timer
self._committimer = QTimer(self, singleShot=True)
self._committimer.timeout.connect(self.commit)
self.addAction(
QAction("Select All",
self,
shortcut=QKeySequence.SelectAll,
triggered=self._select_all))
self._setup_axes()
def __init__(self):
super().__init__()
self.data = None # type: Optional[Orange.data.Table]
self.learner = None # type: Optional[Learner]
self.default_learner = SimpleTreeLearner(min_instances=10,
max_depth=10)
self.modified = False
self.executor = qconcurrent.ThreadExecutor(self)
self.__task = None
main_layout = QVBoxLayout()
main_layout.setContentsMargins(10, 10, 10, 10)
self.controlArea.layout().addLayout(main_layout)
box = QGroupBox(title=self.tr("Default Method"), flat=False)
box_layout = QGridLayout(box)
box_layout.setContentsMargins(5, 0, 0, 0)
main_layout.addWidget(box)
button_group = QButtonGroup()
button_group.buttonClicked[int].connect(self.set_default_method)
for i, (method, _) in enumerate(list(METHODS.items())[1:-1]):
imputer = self.create_imputer(method)
button = QRadioButton(imputer.name)
button.setChecked(method == self.default_method_index)
button_group.addButton(button, method)
box_layout.addWidget(button, i % 3, i // 3)
self.default_button_group = button_group
box = QGroupBox(title=self.tr("Individual Attribute Settings"),
flat=False)
main_layout.addWidget(box)
horizontal_layout = QHBoxLayout(box)
main_layout.addWidget(box)
self.varview = ListViewSearch(
selectionMode=QListView.ExtendedSelection, uniformItemSizes=True)
self.varview.setItemDelegate(DisplayFormatDelegate())
self.varmodel = itemmodels.VariableListModel()
self.varview.setModel(self.varmodel)
self.varview.selectionModel().selectionChanged.connect(
self._on_var_selection_changed)
self.selection = self.varview.selectionModel()
horizontal_layout.addWidget(self.varview)
method_layout = QVBoxLayout()
horizontal_layout.addLayout(method_layout)
button_group = QButtonGroup()
for method in Method:
imputer = self.create_imputer(method)
button = QRadioButton(text=imputer.name)
button_group.addButton(button, method)
method_layout.addWidget(button)
self.value_combo = QComboBox(
minimumContentsLength=8,
sizeAdjustPolicy=QComboBox.AdjustToMinimumContentsLength,
activated=self._on_value_selected)
self.value_double = QDoubleSpinBox(
editingFinished=self._on_value_selected,
minimum=-1000.,
maximum=1000.,
singleStep=.1,
decimals=3,
)
self.value_stack = value_stack = QStackedWidget()
value_stack.addWidget(self.value_combo)
value_stack.addWidget(self.value_double)
method_layout.addWidget(value_stack)
button_group.buttonClicked[int].connect(
self.set_method_for_current_selection)
method_layout.addStretch(2)
reset_button = QPushButton("Restore All to Default",
checked=False,
checkable=False,
clicked=self.reset_variable_state,
default=False,
autoDefault=False)
method_layout.addWidget(reset_button)
self.variable_button_group = button_group
box = gui.auto_apply(self.controlArea, self, "autocommit")
box.button.setFixedWidth(180)
box.layout().insertStretch(0)
self.info.set_input_summary(self.info.NoInput)
self.info.set_output_summary(self.info.NoOutput)
def __init__(self):
super().__init__()
self.scorers = OrderedDict()
self.out_domain_desc = None
self.data = None
self.problem_type_mode = ProblemType.CLASSIFICATION
if not self.selected_methods:
self.selected_methods = {method.name for method in SCORES
if method.is_default}
# GUI
self.ranksModel = model = TableModel(parent=self) # type: TableModel
self.ranksView = view = TableView(self) # type: TableView
self.mainArea.layout().addWidget(view)
view.setModel(model)
view.setColumnWidth(0, 30)
view.selectionModel().selectionChanged.connect(self.on_select)
def _set_select_manual():
self.setSelectionMethod(OWRank.SelectManual)
view.pressed.connect(_set_select_manual)
view.verticalHeader().sectionClicked.connect(_set_select_manual)
view.horizontalHeader().sectionClicked.connect(self.headerClick)
self.measuresStack = stacked = QStackedWidget(self)
self.controlArea.layout().addWidget(stacked)
for scoring_methods in (CLS_SCORES,
REG_SCORES,
[]):
box = gui.vBox(None, "Scoring Methods" if scoring_methods else None)
stacked.addWidget(box)
for method in scoring_methods:
box.layout().addWidget(QCheckBox(
method.name, self,
objectName=method.shortname, # To be easily found in tests
checked=method.name in self.selected_methods,
stateChanged=partial(self.methodSelectionChanged, method_name=method.name)))
gui.rubber(box)
gui.rubber(self.controlArea)
self.switchProblemType(ProblemType.CLASSIFICATION)
selMethBox = gui.vBox(self.controlArea, "Select Attributes", addSpace=True)
grid = QGridLayout()
grid.setContentsMargins(6, 0, 6, 0)
self.selectButtons = QButtonGroup()
self.selectButtons.buttonClicked[int].connect(self.setSelectionMethod)
def button(text, buttonid, toolTip=None):
b = QRadioButton(text)
self.selectButtons.addButton(b, buttonid)
if toolTip is not None:
b.setToolTip(toolTip)
return b
b1 = button(self.tr("None"), OWRank.SelectNone)
b2 = button(self.tr("All"), OWRank.SelectAll)
b3 = button(self.tr("Manual"), OWRank.SelectManual)
b4 = button(self.tr("Best ranked:"), OWRank.SelectNBest)
s = gui.spin(selMethBox, self, "nSelected", 1, 100,
callback=lambda: self.setSelectionMethod(OWRank.SelectNBest))
grid.addWidget(b1, 0, 0)
grid.addWidget(b2, 1, 0)
grid.addWidget(b3, 2, 0)
grid.addWidget(b4, 3, 0)
grid.addWidget(s, 3, 1)
self.selectButtons.button(self.selectionMethod).setChecked(True)
selMethBox.layout().addLayout(grid)
gui.auto_commit(selMethBox, self, "auto_apply", "Send", box=False)
self.resize(690, 500)
def __init__(self):
super().__init__()
self.scorers = OrderedDict()
self.out_domain_desc = None
self.data = None
self.problem_type_mode = ProblemType.CLASSIFICATION
if not self.selected_methods:
self.selected_methods = {method.name for method in SCORES
if method.is_default}
# GUI
self.ranksModel = model = TableModel(parent=self) # type: TableModel
self.ranksView = view = TableView(self) # type: TableView
self.mainArea.layout().addWidget(view)
view.setModel(model)
view.setColumnWidth(0, 30)
view.selectionModel().selectionChanged.connect(self.on_select)
def _set_select_manual():
self.setSelectionMethod(OWRank.SelectManual)
view.pressed.connect(_set_select_manual)
view.verticalHeader().sectionClicked.connect(_set_select_manual)
view.horizontalHeader().sectionClicked.connect(self.headerClick)
self.measuresStack = stacked = QStackedWidget(self)
self.controlArea.layout().addWidget(stacked)
for scoring_methods in (CLS_SCORES,
REG_SCORES,
[]):
box = gui.vBox(None, "Scoring Methods" if scoring_methods else None)
stacked.addWidget(box)
for method in scoring_methods:
box.layout().addWidget(QCheckBox(
method.name, self,
objectName=method.shortname, # To be easily found in tests
checked=method.name in self.selected_methods,
stateChanged=partial(self.methodSelectionChanged, method_name=method.name)))
gui.rubber(box)
gui.rubber(self.controlArea)
self.switchProblemType(ProblemType.CLASSIFICATION)
selMethBox = gui.vBox(self.controlArea, "Select Attributes", addSpace=True)
grid = QGridLayout()
grid.setContentsMargins(6, 0, 6, 0)
self.selectButtons = QButtonGroup()
self.selectButtons.buttonClicked[int].connect(self.setSelectionMethod)
def button(text, buttonid, toolTip=None):
b = QRadioButton(text)
self.selectButtons.addButton(b, buttonid)
if toolTip is not None:
b.setToolTip(toolTip)
return b
b1 = button(self.tr("None"), OWRank.SelectNone)
b2 = button(self.tr("All"), OWRank.SelectAll)
b3 = button(self.tr("Manual"), OWRank.SelectManual)
b4 = button(self.tr("Best ranked:"), OWRank.SelectNBest)
s = gui.spin(selMethBox, self, "nSelected", 1, 100,
callback=lambda: self.setSelectionMethod(OWRank.SelectNBest))
grid.addWidget(b1, 0, 0)
grid.addWidget(b2, 1, 0)
grid.addWidget(b3, 2, 0)
grid.addWidget(b4, 3, 0)
grid.addWidget(s, 3, 1)
self.selectButtons.button(self.selectionMethod).setChecked(True)
selMethBox.layout().addLayout(grid)
gui.auto_commit(selMethBox, self, "auto_apply", "Send", box=False)
self.resize(690, 500)
class OWRank(OWWidget):
name = "Rank"
description = "Rank and filter data features by their relevance."
icon = "icons/Rank.svg"
priority = 1102
keywords = []
buttons_area_orientation = Qt.Vertical
class Inputs:
data = Input("Data", Table)
scorer = Input("Scorer", score.Scorer, multiple=True)
class Outputs:
reduced_data = Output("Reduced Data", Table, default=True)
scores = Output("Scores", Table)
features = Output("Features", AttributeList, dynamic=False)
SelectNone, SelectAll, SelectManual, SelectNBest = range(4)
nSelected = ContextSetting(5)
auto_apply = Setting(True)
sorting = Setting((0, Qt.DescendingOrder))
selected_methods = Setting(set())
settings_version = 2
settingsHandler = DomainContextHandler()
selected_rows = ContextSetting([])
selectionMethod = ContextSetting(SelectNBest)
class Information(OWWidget.Information):
no_target_var = Msg("Data does not have a single target variable. "
"You can still connect in unsupervised scorers "
"such as PCA.")
missings_imputed = Msg('Missing values will be imputed as needed.')
class Error(OWWidget.Error):
invalid_type = Msg("Cannot handle target variable type {}")
inadequate_learner = Msg("Scorer {} inadequate: {}")
no_attributes = Msg("Data does not have a single attribute.")
def __init__(self):
super().__init__()
self.scorers = OrderedDict()
self.out_domain_desc = None
self.data = None
self.problem_type_mode = ProblemType.CLASSIFICATION
if not self.selected_methods:
self.selected_methods = {method.name for method in SCORES
if method.is_default}
# GUI
self.ranksModel = model = TableModel(parent=self) # type: TableModel
self.ranksView = view = TableView(self) # type: TableView
self.mainArea.layout().addWidget(view)
view.setModel(model)
view.setColumnWidth(0, 30)
view.selectionModel().selectionChanged.connect(self.on_select)
def _set_select_manual():
self.setSelectionMethod(OWRank.SelectManual)
view.pressed.connect(_set_select_manual)
view.verticalHeader().sectionClicked.connect(_set_select_manual)
view.horizontalHeader().sectionClicked.connect(self.headerClick)
self.measuresStack = stacked = QStackedWidget(self)
self.controlArea.layout().addWidget(stacked)
for scoring_methods in (CLS_SCORES,
REG_SCORES,
[]):
box = gui.vBox(None, "Scoring Methods" if scoring_methods else None)
stacked.addWidget(box)
for method in scoring_methods:
box.layout().addWidget(QCheckBox(
method.name, self,
objectName=method.shortname, # To be easily found in tests
checked=method.name in self.selected_methods,
stateChanged=partial(self.methodSelectionChanged, method_name=method.name)))
gui.rubber(box)
gui.rubber(self.controlArea)
self.switchProblemType(ProblemType.CLASSIFICATION)
selMethBox = gui.vBox(self.controlArea, "Select Attributes", addSpace=True)
grid = QGridLayout()
grid.setContentsMargins(6, 0, 6, 0)
self.selectButtons = QButtonGroup()
self.selectButtons.buttonClicked[int].connect(self.setSelectionMethod)
def button(text, buttonid, toolTip=None):
b = QRadioButton(text)
self.selectButtons.addButton(b, buttonid)
if toolTip is not None:
b.setToolTip(toolTip)
return b
b1 = button(self.tr("None"), OWRank.SelectNone)
b2 = button(self.tr("All"), OWRank.SelectAll)
b3 = button(self.tr("Manual"), OWRank.SelectManual)
b4 = button(self.tr("Best ranked:"), OWRank.SelectNBest)
s = gui.spin(selMethBox, self, "nSelected", 1, 100,
callback=lambda: self.setSelectionMethod(OWRank.SelectNBest))
grid.addWidget(b1, 0, 0)
grid.addWidget(b2, 1, 0)
grid.addWidget(b3, 2, 0)
grid.addWidget(b4, 3, 0)
grid.addWidget(s, 3, 1)
self.selectButtons.button(self.selectionMethod).setChecked(True)
selMethBox.layout().addLayout(grid)
gui.auto_commit(selMethBox, self, "auto_apply", "Send", box=False)
self.resize(690, 500)
def switchProblemType(self, index):
"""
Switch between discrete/continuous/no_class mode
"""
self.measuresStack.setCurrentIndex(index)
self.problem_type_mode = index
@Inputs.data
@check_sql_input
def set_data(self, data):
self.closeContext()
self.selected_rows = []
self.ranksModel.clear()
self.ranksModel.resetSorting(True)
self.get_method_scores.cache_clear()
self.get_scorer_scores.cache_clear()
self.Error.clear()
self.Information.clear()
self.Information.missings_imputed(
shown=data is not None and data.has_missing())
if data is not None and not len(data.domain.attributes):
data = None
self.Error.no_attributes()
self.data = data
self.switchProblemType(ProblemType.CLASSIFICATION)
if self.data is not None:
domain = self.data.domain
if domain.has_discrete_class:
problem_type = ProblemType.CLASSIFICATION
elif domain.has_continuous_class:
problem_type = ProblemType.REGRESSION
elif not domain.class_var:
self.Information.no_target_var()
problem_type = ProblemType.UNSUPERVISED
else:
# This can happen?
self.Error.invalid_type(type(domain.class_var).__name__)
problem_type = None
if problem_type is not None:
self.switchProblemType(problem_type)
self.ranksModel.setVerticalHeaderLabels(domain.attributes)
self.ranksView.setVHeaderFixedWidthFromLabel(
max((a.name for a in domain.attributes), key=len))
self.selectionMethod = OWRank.SelectNBest
self.openContext(data)
self.selectButtons.button(self.selectionMethod).setChecked(True)
def handleNewSignals(self):
self.setStatusMessage('Running')
self.updateScores()
self.setStatusMessage('')
self.on_select()
@Inputs.scorer
def set_learner(self, scorer, id):
if scorer is None:
self.scorers.pop(id, None)
else:
# Avoid caching a (possibly stale) previous instance of the same
# Scorer passed via the same signal
if id in self.scorers:
self.get_scorer_scores.cache_clear()
self.scorers[id] = ScoreMeta(scorer.name, scorer.name, scorer,
ProblemType.from_variable(scorer.class_type),
False)
@memoize_method()
def get_method_scores(self, method):
estimator = method.scorer()
data = self.data
try:
scores = np.asarray(estimator(data))
except ValueError:
log.warning("Scorer %s wasn't able to compute all scores at once",
method.name)
try:
scores = np.array([estimator(data, attr)
for attr in data.domain.attributes])
except ValueError:
log.error(
"Scorer %s wasn't able to compute scores at all",
method.name)
scores = np.full(len(data.domain.attributes), np.nan)
return scores
@memoize_method()
def get_scorer_scores(self, scorer):
try:
scores = scorer.scorer.score_data(self.data).T
except ValueError:
log.error(
"Scorer %s wasn't able to compute scores at all",
scorer.name)
scores = np.full((len(self.data.domain.attributes), 1), np.nan)
labels = ((scorer.shortname,)
if scores.shape[1] == 1 else
tuple(scorer.shortname + '_' + str(i)
for i in range(1, 1 + scores.shape[1])))
return scores, labels
def updateScores(self):
if self.data is None:
self.ranksModel.clear()
self.Outputs.scores.send(None)
return
methods = [method
for method in SCORES
if (method.name in self.selected_methods and
method.problem_type == self.problem_type_mode and
(not issparse(self.data.X) or
method.scorer.supports_sparse_data))]
scorers = []
self.Error.inadequate_learner.clear()
for scorer in self.scorers.values():
if scorer.problem_type in (self.problem_type_mode, ProblemType.UNSUPERVISED):
scorers.append(scorer)
else:
self.Error.inadequate_learner(scorer.name, scorer.learner_adequacy_err_msg)
method_scores = tuple(self.get_method_scores(method)
for method in methods)
scorer_scores, scorer_labels = (), ()
if scorers:
scorer_scores, scorer_labels = zip(*(self.get_scorer_scores(scorer)
for scorer in scorers))
scorer_labels = tuple(chain.from_iterable(scorer_labels))
labels = tuple(method.shortname for method in methods) + scorer_labels
model_array = np.column_stack(
([len(a.values) if a.is_discrete else np.nan
for a in self.data.domain.attributes],) +
(method_scores if method_scores else ()) +
(scorer_scores if scorer_scores else ())
)
for column, values in enumerate(model_array.T):
self.ranksModel.setExtremesFrom(column, values)
self.ranksModel.wrap(model_array.tolist())
self.ranksModel.setHorizontalHeaderLabels(('#',) + labels)
self.ranksView.setColumnWidth(0, 40)
# Re-apply sort
try:
sort_column, sort_order = self.sorting
if sort_column < len(labels):
# adds 1 for '#' (discrete count) column
self.ranksModel.sort(sort_column + 1, sort_order)
self.ranksView.horizontalHeader().setSortIndicator(sort_column + 1, sort_order)
except ValueError:
pass
self.autoSelection()
self.Outputs.scores.send(self.create_scores_table(labels))
def on_select(self):
# Save indices of attributes in the original, unsorted domain
self.selected_rows = self.ranksModel.mapToSourceRows([
i.row() for i in self.ranksView.selectionModel().selectedRows(0)])
self.commit()
def setSelectionMethod(self, method):
self.selectionMethod = method
self.selectButtons.button(method).setChecked(True)
self.autoSelection()
def autoSelection(self):
selModel = self.ranksView.selectionModel()
model = self.ranksModel
rowCount = model.rowCount()
columnCount = model.columnCount()
if self.selectionMethod == OWRank.SelectNone:
selection = QItemSelection()
elif self.selectionMethod == OWRank.SelectAll:
selection = QItemSelection(
model.index(0, 0),
model.index(rowCount - 1, columnCount - 1)
)
elif self.selectionMethod == OWRank.SelectNBest:
nSelected = min(self.nSelected, rowCount)
selection = QItemSelection(
model.index(0, 0),
model.index(nSelected - 1, columnCount - 1)
)
else:
selection = QItemSelection()
if len(self.selected_rows):
for row in model.mapFromSourceRows(self.selected_rows):
selection.append(QItemSelectionRange(
model.index(row, 0), model.index(row, columnCount - 1)))
selModel.select(selection, QItemSelectionModel.ClearAndSelect)
def headerClick(self, index):
if index >= 1 and self.selectionMethod == OWRank.SelectNBest:
# Reselect the top ranked attributes
self.autoSelection()
# Store the header states
sort_order = self.ranksModel.sortOrder()
sort_column = self.ranksModel.sortColumn() - 1 # -1 for '#' (discrete count) column
self.sorting = (sort_column, sort_order)
def methodSelectionChanged(self, state, method_name):
if state == Qt.Checked:
self.selected_methods.add(method_name)
elif method_name in self.selected_methods:
self.selected_methods.remove(method_name)
self.updateScores()
def send_report(self):
if not self.data:
return
self.report_domain("Input", self.data.domain)
self.report_table("Ranks", self.ranksView, num_format="{:.3f}")
if self.out_domain_desc is not None:
self.report_items("Output", self.out_domain_desc)
def commit(self):
selected_attrs = []
if self.data is not None:
selected_attrs = [self.data.domain.attributes[i]
for i in self.selected_rows]
if not selected_attrs:
self.Outputs.reduced_data.send(None)
self.Outputs.features.send(None)
self.out_domain_desc = None
else:
reduced_domain = Domain(
selected_attrs, self.data.domain.class_var, self.data.domain.metas)
data = self.data.transform(reduced_domain)
self.Outputs.reduced_data.send(data)
self.Outputs.features.send(AttributeList(selected_attrs))
self.out_domain_desc = report.describe_domain(data.domain)
def create_scores_table(self, labels):
model_list = self.ranksModel.tolist()
if not model_list or len(model_list[0]) == 1: # Empty or just n_values column
return None
domain = Domain([ContinuousVariable(label) for label in labels],
metas=[StringVariable("Feature")])
# Prevent np.inf scores
finfo = np.finfo(np.float64)
scores = np.clip(np.array(model_list)[:, 1:], finfo.min, finfo.max)
feature_names = np.array([a.name for a in self.data.domain.attributes])
# Reshape to 2d array as Table does not like 1d arrays
feature_names = feature_names[:, None]
new_table = Table(domain, scores, metas=feature_names)
new_table.name = "Feature Scores"
return new_table
@classmethod
def migrate_settings(cls, settings, version):
# If older settings, restore sort header to default
# Saved selected_rows will likely be incorrect
if version is None or version < 2:
column, order = 0, Qt.DescendingOrder
headerState = settings.pop("headerState", None)
# Lacking knowledge of last problemType, use discrete ranks view's ordering
if isinstance(headerState, (tuple, list)):
headerState = headerState[0]
if isinstance(headerState, bytes):
hview = QHeaderView(Qt.Horizontal)
hview.restoreState(headerState)
column, order = hview.sortIndicatorSection() - 1, hview.sortIndicatorOrder()
settings["sorting"] = (column, order)
@classmethod
def migrate_context(cls, context, version):
if version is None or version < 2:
# Old selection was saved as sorted indices. New selection is original indices.
# Since we can't devise the latter without first computing the ranks,
# just reset the selection to avoid confusion.
context.values['selected_rows'] = []
def __init__(self):
super().__init__()
main_layout = QVBoxLayout()
main_layout.setContentsMargins(10, 10, 10, 10)
self.controlArea.layout().addLayout(main_layout)
box = QGroupBox(title=self.tr("Default Method"), flat=False)
box_layout = QVBoxLayout(box)
main_layout.addWidget(box)
button_group = QButtonGroup()
button_group.buttonClicked[int].connect(self.set_default_method)
for i, method in enumerate(self.METHODS):
if not method.columns_only:
button = QRadioButton(method.name)
button.setChecked(i == self.default_method_index)
button_group.addButton(button, i)
box_layout.addWidget(button)
self.default_button_group = button_group
box = QGroupBox(title=self.tr("Individual Attribute Settings"),
flat=False)
main_layout.addWidget(box)
horizontal_layout = QHBoxLayout(box)
main_layout.addWidget(box)
self.varview = QListView(
selectionMode=QListView.ExtendedSelection
)
self.varview.setItemDelegate(DisplayFormatDelegate())
self.varmodel = itemmodels.VariableListModel()
self.varview.setModel(self.varmodel)
self.varview.selectionModel().selectionChanged.connect(
self._on_var_selection_changed
)
self.selection = self.varview.selectionModel()
horizontal_layout.addWidget(self.varview)
method_layout = QVBoxLayout()
horizontal_layout.addLayout(method_layout)
button_group = QButtonGroup()
for i, method in enumerate(self.METHODS):
button = QRadioButton(text=method.name)
button_group.addButton(button, i)
method_layout.addWidget(button)
self.value_combo = QComboBox(
minimumContentsLength=8,
sizeAdjustPolicy=QComboBox.AdjustToMinimumContentsLength,
activated=self._on_value_selected
)
self.value_combo.currentIndexChanged.connect(self._on_value_changed)
self.value_double = QDoubleSpinBox(
editingFinished=self._on_value_selected,
minimum=-1000., maximum=1000., singleStep=.1, decimals=3,
value=self.default_value
)
self.value_stack = value_stack = QStackedLayout()
value_stack.addWidget(self.value_combo)
value_stack.addWidget(self.value_double)
method_layout.addLayout(value_stack)
button_group.buttonClicked[int].connect(
self.set_method_for_current_selection
)
method_layout.addStretch(2)
reset_button = QPushButton(
"Restore All to Default", checked=False, checkable=False,
clicked=self.reset_variable_methods, default=False,
autoDefault=False)
method_layout.addWidget(reset_button)
self.variable_button_group = button_group
box = gui.auto_commit(
self.controlArea, self, "autocommit", "Apply",
orientation=Qt.Horizontal, checkbox_label="Apply automatically")
box.layout().insertSpacing(0, 80)
box.layout().insertWidget(0, self.report_button)
self.data = None
self.modified = False
self.default_method = self.METHODS[self.default_method_index]
self.update_varview()
def __init__(self):
super().__init__()
self.data = None # type: Optional[Orange.data.Table]
self.learner = None # type: Optional[Learner]
self.default_learner = SimpleTreeLearner()
self.modified = False
self.executor = qconcurrent.ThreadExecutor(self)
self.__task = None
main_layout = QVBoxLayout()
main_layout.setContentsMargins(10, 10, 10, 10)
self.controlArea.layout().addLayout(main_layout)
box = QGroupBox(title=self.tr("Default Method"), flat=False)
box_layout = QVBoxLayout(box)
main_layout.addWidget(box)
button_group = QButtonGroup()
button_group.buttonClicked[int].connect(self.set_default_method)
for method, _ in list(METHODS.items())[1:-1]:
imputer = self.create_imputer(method)
button = QRadioButton(imputer.name)
button.setChecked(method == self.default_method_index)
button_group.addButton(button, method)
box_layout.addWidget(button)
self.default_button_group = button_group
box = QGroupBox(title=self.tr("Individual Attribute Settings"),
flat=False)
main_layout.addWidget(box)
horizontal_layout = QHBoxLayout(box)
main_layout.addWidget(box)
self.varview = QListView(
selectionMode=QListView.ExtendedSelection,
uniformItemSizes=True
)
self.varview.setItemDelegate(DisplayFormatDelegate())
self.varmodel = itemmodels.VariableListModel()
self.varview.setModel(self.varmodel)
self.varview.selectionModel().selectionChanged.connect(
self._on_var_selection_changed
)
self.selection = self.varview.selectionModel()
horizontal_layout.addWidget(self.varview)
method_layout = QVBoxLayout()
horizontal_layout.addLayout(method_layout)
button_group = QButtonGroup()
for method in Method:
imputer = self.create_imputer(method)
button = QRadioButton(text=imputer.name)
button_group.addButton(button, method)
method_layout.addWidget(button)
self.value_combo = QComboBox(
minimumContentsLength=8,
sizeAdjustPolicy=QComboBox.AdjustToMinimumContentsLength,
activated=self._on_value_selected
)
self.value_double = QDoubleSpinBox(
editingFinished=self._on_value_selected,
minimum=-1000., maximum=1000., singleStep=.1, decimals=3,
)
self.value_stack = value_stack = QStackedWidget()
value_stack.addWidget(self.value_combo)
value_stack.addWidget(self.value_double)
method_layout.addWidget(value_stack)
button_group.buttonClicked[int].connect(
self.set_method_for_current_selection
)
method_layout.addStretch(2)
reset_button = QPushButton(
"Restore All to Default", checked=False, checkable=False,
clicked=self.reset_variable_state, default=False,
autoDefault=False)
method_layout.addWidget(reset_button)
self.variable_button_group = button_group
box = gui.auto_commit(
self.controlArea, self, "autocommit", "Apply",
orientation=Qt.Horizontal,
checkbox_label="Apply automatically")
box.button.setFixedWidth(180)
box.layout().insertStretch(0)
class TabBarWidget(QWidget):
"""
A vertical tab bar widget using tool buttons as for tabs.
"""
currentChanged = Signal(int)
def __init__(self, parent=None, **kwargs):
# type: (Optional[QWidget], Any) -> None
super().__init__(parent, **kwargs)
layout = QVBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(0)
self.setLayout(layout)
self.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Expanding)
self.__tabs = [] # type: List[_Tab]
self.__currentIndex = -1
self.__changeOnHover = False
self.__iconSize = QSize(26, 26)
self.__group = QButtonGroup(self, exclusive=True)
self.__group.buttonPressed[QAbstractButton].connect(
self.__onButtonPressed)
self.setMouseTracking(True)
self.__sloppyButton = None # type: Optional[QAbstractButton]
self.__sloppyRegion = QRegion()
self.__sloppyTimer = QTimer(self, singleShot=True)
self.__sloppyTimer.timeout.connect(self.__onSloppyTimeout)
def setChangeOnHover(self, changeOnHover):
# type: (bool) -> None
"""
If set to ``True`` the tab widget will change the current index when
the mouse hovers over a tab button.
"""
if self.__changeOnHover != changeOnHover:
self.__changeOnHover = changeOnHover
def changeOnHover(self):
# type: () -> bool
"""
Does the current tab index follow the mouse cursor.
"""
return self.__changeOnHover
def count(self):
# type: () -> int
"""
Return the number of tabs in the widget.
"""
return len(self.__tabs)
def addTab(self, text, icon=QIcon(), toolTip=""):
# type: (str, QIcon, str) -> int
"""
Add a new tab and return it's index.
"""
return self.insertTab(self.count(), text, icon, toolTip)
def insertTab(self, index, text, icon=QIcon(), toolTip=""):
# type: (int, str, QIcon, str) -> int
"""
Insert a tab at `index`
"""
button = TabButton(self, objectName="tab-button")
button.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
button.setIconSize(self.__iconSize)
button.setMouseTracking(True)
self.__group.addButton(button)
button.installEventFilter(self)
tab = _Tab(text, icon, toolTip, button, None, None)
self.layout().insertWidget(index, button)
self.__tabs.insert(index, tab)
self.__updateTab(index)
if self.currentIndex() == -1:
self.setCurrentIndex(0)
return index
def removeTab(self, index):
# type: (int) -> None
"""
Remove a tab at `index`.
"""
if 0 <= index < self.count():
tab = self.__tabs.pop(index)
layout_index = self.layout().indexOf(tab.button)
if layout_index != -1:
self.layout().takeAt(layout_index)
self.__group.removeButton(tab.button)
tab.button.removeEventFilter(self)
if tab.button is self.__sloppyButton:
self.__sloppyButton = None
self.__sloppyRegion = QRegion()
tab.button.deleteLater()
tab.button.setParent(None)
if self.currentIndex() == index:
if self.count():
self.setCurrentIndex(max(index - 1, 0))
else:
self.setCurrentIndex(-1)
def setTabIcon(self, index, icon):
# type: (int, QIcon) -> None
"""
Set the `icon` for tab at `index`.
"""
self.__tabs[index] = self.__tabs[index]._replace(icon=QIcon(icon))
self.__updateTab(index)
def setTabToolTip(self, index, toolTip):
# type: (int, str) -> None
"""
Set `toolTip` for tab at `index`.
"""
self.__tabs[index] = self.__tabs[index]._replace(toolTip=toolTip)
self.__updateTab(index)
def setTabText(self, index, text):
# type: (int, str) -> None
"""
Set tab `text` for tab at `index`
"""
self.__tabs[index] = self.__tabs[index]._replace(text=text)
self.__updateTab(index)
def setTabPalette(self, index, palette):
# type: (int, QPalette) -> None
"""
Set the tab button palette.
"""
self.__tabs[index] = self.__tabs[index]._replace(
palette=QPalette(palette))
self.__updateTab(index)
def setCurrentIndex(self, index):
# type: (int) -> None
"""
Set the current tab index.
"""
if self.__currentIndex != index:
self.__currentIndex = index
self.__sloppyRegion = QRegion()
self.__sloppyButton = None
if index != -1:
self.__tabs[index].button.setChecked(True)
self.currentChanged.emit(index)
def currentIndex(self):
# type: () -> int
"""
Return the current index.
"""
return self.__currentIndex
def button(self, index):
# type: (int) -> QAbstractButton
"""
Return the `TabButton` instance for index.
"""
return self.__tabs[index].button
def setIconSize(self, size):
# type: (QSize) -> None
if self.__iconSize != size:
self.__iconSize = QSize(size)
for tab in self.__tabs:
tab.button.setIconSize(self.__iconSize)
def __updateTab(self, index):
# type: (int) -> None
"""
Update the tab button.
"""
tab = self.__tabs[index]
b = tab.button
if tab.text:
b.setText(tab.text)
if tab.icon is not None and not tab.icon.isNull():
b.setIcon(tab.icon)
if tab.palette:
b.setPalette(tab.palette)
def __onButtonPressed(self, button):
# type: (QAbstractButton) -> None
for i, tab in enumerate(self.__tabs):
if tab.button is button:
self.setCurrentIndex(i)
break
def __calcSloppyRegion(self, current):
# type: (QPoint) -> QRegion
"""
Given a current mouse cursor position return a region of the widget
where hover/move events should change the current tab only on a
timeout.
"""
p1 = current + QPoint(0, 2)
p2 = current + QPoint(0, -2)
p3 = self.pos() + QPoint(self.width() + 10, 0)
p4 = self.pos() + QPoint(self.width() + 10, self.height())
return QRegion(QPolygon([p1, p2, p3, p4]))
def __setSloppyButton(self, button):
# type: (QAbstractButton) -> None
"""
Set the current sloppy button (a tab button inside sloppy region)
and reset the sloppy timeout.
"""
if not button.isChecked():
self.__sloppyButton = button
delay = self.style().styleHint(QStyle.SH_Menu_SubMenuPopupDelay,
None)
# The delay timeout is the same as used by Qt in the QMenu.
self.__sloppyTimer.start(delay)
else:
self.__sloppyTimer.stop()
def __onSloppyTimeout(self):
# type: () -> None
if self.__sloppyButton is not None:
button = self.__sloppyButton
self.__sloppyButton = None
if not button.isChecked():
index = [tab.button for tab in self.__tabs].index(button)
self.setCurrentIndex(index)
def eventFilter(self, receiver, event):
if event.type() == QEvent.MouseMove and \
isinstance(receiver, TabButton):
pos = receiver.mapTo(self, event.pos())
if self.__sloppyRegion.contains(pos):
self.__setSloppyButton(receiver)
else:
if not receiver.isChecked():
index = [tab.button for tab in self.__tabs].index(receiver)
self.setCurrentIndex(index)
#also update sloppy region if mouse is moved on the same icon
self.__sloppyRegion = self.__calcSloppyRegion(pos)
return super().eventFilter(receiver, event)
def leaveEvent(self, event):
self.__sloppyButton = None
self.__sloppyRegion = QRegion()
return super().leaveEvent(event)
def _setup_gui(self):
grid = QGridLayout()
box = gui.widgetBox(self.controlArea, "Scoring Methods", grid)
yake_cb = gui.comboBox(self.controlArea,
self,
"yake_lang_index",
items=YAKE_LANGUAGES,
callback=self.__on_yake_lang_changed)
rake_cb = gui.comboBox(self.controlArea,
self,
"rake_lang_index",
items=RAKE_LANGUAGES,
callback=self.__on_rake_lang_changed)
for i, (method_name, _) in enumerate(ScoringMethods.ITEMS):
check_box = QCheckBox(method_name, self)
check_box.setChecked(method_name in self.selected_scoring_methods)
check_box.stateChanged.connect(
lambda state, name=method_name: self.
__on_scoring_method_state_changed(state, name))
box.layout().addWidget(check_box, i, 0)
if method_name == ScoringMethods.YAKE:
box.layout().addWidget(yake_cb, i, 1)
if method_name == ScoringMethods.RAKE:
box.layout().addWidget(rake_cb, i, 1)
box = gui.vBox(self.controlArea, "Aggregation")
gui.comboBox(box,
self,
"agg_method",
items=AggregationMethods.ITEMS,
callback=self.update_scores)
box = gui.vBox(self.controlArea, "Select Words")
grid = QGridLayout()
grid.setContentsMargins(0, 0, 0, 0)
box.layout().addLayout(grid)
self.__sel_method_buttons = QButtonGroup()
for method, label in enumerate(SelectionMethods.ITEMS):
button = QRadioButton(label)
button.setChecked(method == self.sel_method)
grid.addWidget(button, method, 0)
self.__sel_method_buttons.addButton(button, method)
self.__sel_method_buttons.buttonClicked[int].connect(
self._set_selection_method)
spin = gui.spin(box,
self,
"n_selected",
1,
999,
addToLayout=False,
callback=lambda: self._set_selection_method(
SelectionMethods.N_BEST))
grid.addWidget(spin, 3, 1)
gui.rubber(self.controlArea)
gui.auto_send(self.buttonsArea, self, "auto_apply")
self.__filter_line_edit = QLineEdit(
textChanged=self.__on_filter_changed, placeholderText="Filter...")
self.mainArea.layout().addWidget(self.__filter_line_edit)
def select_manual():
self._set_selection_method(SelectionMethods.MANUAL)
self.view = KeywordsTableView()
self.view.pressedAny.connect(select_manual)
self.view.horizontalHeader().setSortIndicator(*self.DEFAULT_SORTING)
self.view.horizontalHeader().sectionClicked.connect(
self.__on_horizontal_header_clicked)
self.mainArea.layout().addWidget(self.view)
proxy = SortFilterProxyModel()
proxy.setFilterKeyColumn(0)
proxy.setFilterCaseSensitivity(False)
self.view.setModel(proxy)
self.view.model().setSourceModel(self.model)
self.view.selectionModel().selectionChanged.connect(
self.__on_selection_changed)
class OWKeywords(OWWidget, ConcurrentWidgetMixin):
name = "Extract Keywords"
description = "Infers characteristic words from the input corpus."
icon = "icons/Keywords.svg"
priority = 1100
keywords = ["characteristic", "term"]
DEFAULT_SORTING = (1, Qt.DescendingOrder)
settingsHandler = DomainContextHandler()
selected_scoring_methods: Set[str] = Setting({ScoringMethods.TF_IDF})
yake_lang_index: int = Setting(YAKE_LANGUAGES.index("English"))
rake_lang_index: int = Setting(RAKE_LANGUAGES.index("English"))
agg_method: int = Setting(AggregationMethods.MEAN)
sel_method: int = ContextSetting(SelectionMethods.N_BEST)
n_selected: int = ContextSetting(3)
sort_column_order: Tuple[int, int] = Setting(DEFAULT_SORTING)
selected_words = ContextSetting([], schema_only=True)
auto_apply: bool = Setting(True)
class Inputs:
corpus = Input("Corpus", Corpus)
words = Input("Words", Table)
class Outputs:
words = Output("Words", Corpus)
class Warning(OWWidget.Warning):
no_words_column = Msg("Input is missing 'Words' column.")
def __init__(self):
OWWidget.__init__(self)
ConcurrentWidgetMixin.__init__(self)
self.corpus: Optional[Corpus] = None
self.words: Optional[List] = None
self.__cached_keywords = {}
self.model = KeywordsTableModel(parent=self)
self._setup_gui()
def _setup_gui(self):
grid = QGridLayout()
box = gui.widgetBox(self.controlArea, "Scoring Methods", grid)
yake_cb = gui.comboBox(self.controlArea,
self,
"yake_lang_index",
items=YAKE_LANGUAGES,
callback=self.__on_yake_lang_changed)
rake_cb = gui.comboBox(self.controlArea,
self,
"rake_lang_index",
items=RAKE_LANGUAGES,
callback=self.__on_rake_lang_changed)
for i, (method_name, _) in enumerate(ScoringMethods.ITEMS):
check_box = QCheckBox(method_name, self)
check_box.setChecked(method_name in self.selected_scoring_methods)
check_box.stateChanged.connect(
lambda state, name=method_name: self.
__on_scoring_method_state_changed(state, name))
box.layout().addWidget(check_box, i, 0)
if method_name == ScoringMethods.YAKE:
box.layout().addWidget(yake_cb, i, 1)
if method_name == ScoringMethods.RAKE:
box.layout().addWidget(rake_cb, i, 1)
box = gui.vBox(self.controlArea, "Aggregation")
gui.comboBox(box,
self,
"agg_method",
items=AggregationMethods.ITEMS,
callback=self.update_scores)
box = gui.vBox(self.controlArea, "Select Words")
grid = QGridLayout()
grid.setContentsMargins(0, 0, 0, 0)
box.layout().addLayout(grid)
self.__sel_method_buttons = QButtonGroup()
for method, label in enumerate(SelectionMethods.ITEMS):
button = QRadioButton(label)
button.setChecked(method == self.sel_method)
grid.addWidget(button, method, 0)
self.__sel_method_buttons.addButton(button, method)
self.__sel_method_buttons.buttonClicked[int].connect(
self._set_selection_method)
spin = gui.spin(box,
self,
"n_selected",
1,
999,
addToLayout=False,
callback=lambda: self._set_selection_method(
SelectionMethods.N_BEST))
grid.addWidget(spin, 3, 1)
gui.rubber(self.controlArea)
gui.auto_send(self.buttonsArea, self, "auto_apply")
self.__filter_line_edit = QLineEdit(
textChanged=self.__on_filter_changed, placeholderText="Filter...")
self.mainArea.layout().addWidget(self.__filter_line_edit)
def select_manual():
self._set_selection_method(SelectionMethods.MANUAL)
self.view = KeywordsTableView()
self.view.pressedAny.connect(select_manual)
self.view.horizontalHeader().setSortIndicator(*self.DEFAULT_SORTING)
self.view.horizontalHeader().sectionClicked.connect(
self.__on_horizontal_header_clicked)
self.mainArea.layout().addWidget(self.view)
proxy = SortFilterProxyModel()
proxy.setFilterKeyColumn(0)
proxy.setFilterCaseSensitivity(False)
self.view.setModel(proxy)
self.view.model().setSourceModel(self.model)
self.view.selectionModel().selectionChanged.connect(
self.__on_selection_changed)
def __on_scoring_method_state_changed(self, state: int, method_name: str):
if state == Qt.Checked:
self.selected_scoring_methods.add(method_name)
elif method_name in self.selected_scoring_methods:
self.selected_scoring_methods.remove(method_name)
self.update_scores()
def __on_yake_lang_changed(self):
if ScoringMethods.YAKE in self.selected_scoring_methods:
if ScoringMethods.YAKE in self.__cached_keywords:
del self.__cached_keywords[ScoringMethods.YAKE]
self.update_scores()
def __on_rake_lang_changed(self):
if ScoringMethods.RAKE in self.selected_scoring_methods:
if ScoringMethods.RAKE in self.__cached_keywords:
del self.__cached_keywords[ScoringMethods.RAKE]
self.update_scores()
def __on_filter_changed(self):
model = self.view.model()
model.setFilterFixedString(self.__filter_line_edit.text().strip())
self._select_rows()
def __on_horizontal_header_clicked(self, index: int):
header = self.view.horizontalHeader()
self.sort_column_order = (index, header.sortIndicatorOrder())
self._select_rows()
# explicitly call commit, because __on_selection_changed will not be
# invoked, since selection is actually the same, only order is not
if self.sel_method == SelectionMethods.MANUAL and self.selected_words \
or self.sel_method == SelectionMethods.ALL:
self.commit()
def __on_selection_changed(self):
selected_rows = self.view.selectionModel().selectedRows(0)
model = self.view.model()
self.selected_words = [
model.data(model.index(i.row(), 0)) for i in selected_rows
]
self.commit()
@Inputs.corpus
def set_corpus(self, corpus: Optional[Corpus]):
self.closeContext()
self._clear()
self.corpus = corpus
self.openContext(self.corpus)
self.__sel_method_buttons.button(self.sel_method).setChecked(True)
def _clear(self):
self.clear_messages()
self.cancel()
self.selected_words = []
self.model.clear()
self.__cached_keywords = {}
@Inputs.words
def set_words(self, words: Optional[Table]):
self.words = None
self.Warning.no_words_column.clear()
if words:
if WORDS_COLUMN_NAME in words.domain and words.domain[
WORDS_COLUMN_NAME].attributes.get("type") == "words":
self.words = list(words.get_column_view(WORDS_COLUMN_NAME)[0])
else:
self.Warning.no_words_column()
def handleNewSignals(self):
self.update_scores()
def update_scores(self):
kwargs = {
ScoringMethods.YAKE: {
"language": YAKE_LANGUAGES[self.yake_lang_index],
"max_len": self.corpus.ngram_range[1] if self.corpus else 1
},
ScoringMethods.RAKE: {
"language": RAKE_LANGUAGES[self.rake_lang_index],
"max_len": self.corpus.ngram_range[1] if self.corpus else 1
},
}
self.start(run, self.corpus, self.words, self.__cached_keywords,
self.selected_scoring_methods, kwargs, self.agg_method)
def _set_selection_method(self, method: int):
self.sel_method = method
self.__sel_method_buttons.button(method).setChecked(True)
self._select_rows()
def _select_rows(self):
model = self.view.model()
n_rows, n_columns = model.rowCount(), model.columnCount()
if self.sel_method == SelectionMethods.NONE:
selection = QItemSelection()
elif self.sel_method == SelectionMethods.ALL:
selection = QItemSelection(model.index(0, 0),
model.index(n_rows - 1, n_columns - 1))
elif self.sel_method == SelectionMethods.MANUAL:
selection = QItemSelection()
for i in range(n_rows):
word = model.data(model.index(i, 0))
if word in self.selected_words:
_selection = QItemSelection(model.index(i, 0),
model.index(i, n_columns - 1))
selection.merge(_selection, QItemSelectionModel.Select)
elif self.sel_method == SelectionMethods.N_BEST:
n_sel = min(self.n_selected, n_rows)
selection = QItemSelection(model.index(0, 0),
model.index(n_sel - 1, n_columns - 1))
else:
raise NotImplementedError
self.view.selectionModel().select(selection,
QItemSelectionModel.ClearAndSelect)
def on_exception(self, ex: Exception):
raise ex
def on_partial_result(self, _: Any):
pass
# pylint: disable=arguments-differ
def on_done(self, results: Results):
self.__cached_keywords = results.all_keywords
self.model.wrap(results.scores)
self.model.setHorizontalHeaderLabels(["Word"] + results.labels)
self._apply_sorting()
if self.model.rowCount() > 0:
self._select_rows()
else:
self.__on_selection_changed()
def _apply_sorting(self):
if self.model.columnCount() <= self.sort_column_order[0]:
self.sort_column_order = self.DEFAULT_SORTING
header = self.view.horizontalHeader()
current_sorting = (header.sortIndicatorSection(),
header.sortIndicatorOrder())
if current_sorting != self.sort_column_order:
header.setSortIndicator(*self.sort_column_order)
# needed to sort nans; 1. column has strings
# if self.sort_column_order[0] > 0:
# self.model.sort(*self.sort_column_order)
def onDeleteWidget(self):
self.shutdown()
super().onDeleteWidget()
def commit(self):
words = None
if self.selected_words:
words_var = StringVariable(WORDS_COLUMN_NAME)
words_var.attributes = {"type": "words"}
model = self.model
attrs = [
ContinuousVariable(model.headerData(i + 1, Qt.Horizontal))
for i in range(len(self.selected_scoring_methods))
]
domain = Domain(attrs, metas=[words_var])
sort_column, reverse = self.sort_column_order
data = sorted(model, key=lambda a: a[sort_column], reverse=reverse)
data = [s[1:] + s[:1] for s in data if s[0] in self.selected_words]
words = Table.from_list(domain, data)
words.name = "Words"
self.Outputs.words.send(words)
def send_report(self):
if not self.corpus:
return
self.report_data("Corpus", self.corpus)
if self.words is not None:
self.report_paragraph("Words", ", ".join(self.words))
self.report_table("Keywords", self.view, num_format="{:.3f}")
class OWRank(OWWidget):
name = "Rank"
description = "Rank and filter data features by their relevance."
icon = "icons/Rank.svg"
priority = 1102
keywords = []
buttons_area_orientation = Qt.Vertical
class Inputs:
data = Input("Data", Table)
scorer = Input("Scorer", score.Scorer, multiple=True)
class Outputs:
reduced_data = Output("Reduced Data", Table, default=True)
scores = Output("Scores", Table)
features = Output("Features", AttributeList, dynamic=False)
SelectNone, SelectAll, SelectManual, SelectNBest = range(4)
nSelected = ContextSetting(5)
auto_apply = Setting(True)
sorting = Setting((0, Qt.DescendingOrder))
selected_methods = Setting(set())
settings_version = 2
settingsHandler = DomainContextHandler()
selected_rows = ContextSetting([])
selectionMethod = ContextSetting(SelectNBest)
class Information(OWWidget.Information):
no_target_var = Msg("Data does not have a single target variable. "
"You can still connect in unsupervised scorers "
"such as PCA.")
missings_imputed = Msg('Missing values will be imputed as needed.')
class Error(OWWidget.Error):
invalid_type = Msg("Cannot handle target variable type {}")
inadequate_learner = Msg("Scorer {} inadequate: {}")
no_attributes = Msg("Data does not have a single attribute.")
def __init__(self):
super().__init__()
self.scorers = OrderedDict()
self.out_domain_desc = None
self.data = None
self.problem_type_mode = ProblemType.CLASSIFICATION
if not self.selected_methods:
self.selected_methods = {method.name for method in SCORES
if method.is_default}
# GUI
self.ranksModel = model = TableModel(parent=self) # type: TableModel
self.ranksView = view = TableView(self) # type: TableView
self.mainArea.layout().addWidget(view)
view.setModel(model)
view.setColumnWidth(0, 30)
view.selectionModel().selectionChanged.connect(self.on_select)
def _set_select_manual():
self.setSelectionMethod(OWRank.SelectManual)
view.pressed.connect(_set_select_manual)
view.verticalHeader().sectionClicked.connect(_set_select_manual)
view.horizontalHeader().sectionClicked.connect(self.headerClick)
self.measuresStack = stacked = QStackedWidget(self)
self.controlArea.layout().addWidget(stacked)
for scoring_methods in (CLS_SCORES,
REG_SCORES,
[]):
box = gui.vBox(None, "Scoring Methods" if scoring_methods else None)
stacked.addWidget(box)
for method in scoring_methods:
box.layout().addWidget(QCheckBox(
method.name, self,
objectName=method.shortname, # To be easily found in tests
checked=method.name in self.selected_methods,
stateChanged=partial(self.methodSelectionChanged, method_name=method.name)))
gui.rubber(box)
gui.rubber(self.controlArea)
self.switchProblemType(ProblemType.CLASSIFICATION)
selMethBox = gui.vBox(self.controlArea, "Select Attributes", addSpace=True)
grid = QGridLayout()
grid.setContentsMargins(6, 0, 6, 0)
self.selectButtons = QButtonGroup()
self.selectButtons.buttonClicked[int].connect(self.setSelectionMethod)
def button(text, buttonid, toolTip=None):
b = QRadioButton(text)
self.selectButtons.addButton(b, buttonid)
if toolTip is not None:
b.setToolTip(toolTip)
return b
b1 = button(self.tr("None"), OWRank.SelectNone)
b2 = button(self.tr("All"), OWRank.SelectAll)
b3 = button(self.tr("Manual"), OWRank.SelectManual)
b4 = button(self.tr("Best ranked:"), OWRank.SelectNBest)
s = gui.spin(selMethBox, self, "nSelected", 1, 100,
callback=lambda: self.setSelectionMethod(OWRank.SelectNBest))
grid.addWidget(b1, 0, 0)
grid.addWidget(b2, 1, 0)
grid.addWidget(b3, 2, 0)
grid.addWidget(b4, 3, 0)
grid.addWidget(s, 3, 1)
self.selectButtons.button(self.selectionMethod).setChecked(True)
selMethBox.layout().addLayout(grid)
gui.auto_commit(selMethBox, self, "auto_apply", "Send", box=False)
self.resize(690, 500)
def switchProblemType(self, index):
"""
Switch between discrete/continuous/no_class mode
"""
self.measuresStack.setCurrentIndex(index)
self.problem_type_mode = index
@Inputs.data
@check_sql_input
def set_data(self, data):
self.closeContext()
self.selected_rows = []
self.ranksModel.clear()
self.ranksModel.resetSorting(True)
self.get_method_scores.cache_clear()
self.get_scorer_scores.cache_clear()
self.Error.clear()
self.Information.clear()
self.Information.missings_imputed(
shown=data is not None and data.has_missing())
if data is not None and not len(data.domain.attributes):
data = None
self.Error.no_attributes()
self.data = data
self.switchProblemType(ProblemType.CLASSIFICATION)
if self.data is not None:
domain = self.data.domain
if domain.has_discrete_class:
problem_type = ProblemType.CLASSIFICATION
elif domain.has_continuous_class:
problem_type = ProblemType.REGRESSION
elif not domain.class_var:
self.Information.no_target_var()
problem_type = ProblemType.UNSUPERVISED
else:
# This can happen?
self.Error.invalid_type(type(domain.class_var).__name__)
problem_type = None
if problem_type is not None:
self.switchProblemType(problem_type)
self.ranksModel.setVerticalHeaderLabels(domain.attributes)
self.ranksView.setVHeaderFixedWidthFromLabel(
max((a.name for a in domain.attributes), key=len))
self.selectionMethod = OWRank.SelectNBest
self.openContext(data)
self.selectButtons.button(self.selectionMethod).setChecked(True)
def handleNewSignals(self):
self.setStatusMessage('Running')
self.updateScores()
self.setStatusMessage('')
self.on_select()
@Inputs.scorer
def set_learner(self, scorer, id):
if scorer is None:
self.scorers.pop(id, None)
else:
# Avoid caching a (possibly stale) previous instance of the same
# Scorer passed via the same signal
if id in self.scorers:
self.get_scorer_scores.cache_clear()
self.scorers[id] = ScoreMeta(scorer.name, scorer.name, scorer,
ProblemType.from_variable(scorer.class_type),
False)
@memoize_method()
def get_method_scores(self, method):
estimator = method.scorer()
data = self.data
try:
scores = np.asarray(estimator(data))
except ValueError:
log.warning("Scorer %s wasn't able to compute all scores at once",
method.name)
try:
scores = np.array([estimator(data, attr)
for attr in data.domain.attributes])
except ValueError:
log.error(
"Scorer %s wasn't able to compute scores at all",
method.name)
scores = np.full(len(data.domain.attributes), np.nan)
return scores
@memoize_method()
def get_scorer_scores(self, scorer):
try:
scores = scorer.scorer.score_data(self.data).T
except ValueError:
log.error(
"Scorer %s wasn't able to compute scores at all",
scorer.name)
scores = np.full((len(self.data.domain.attributes), 1), np.nan)
labels = ((scorer.shortname,)
if scores.shape[1] == 1 else
tuple(scorer.shortname + '_' + str(i)
for i in range(1, 1 + scores.shape[1])))
return scores, labels
def updateScores(self):
if self.data is None:
self.ranksModel.clear()
self.Outputs.scores.send(None)
return
methods = [method
for method in SCORES
if (method.name in self.selected_methods and
method.problem_type == self.problem_type_mode and
(not issparse(self.data.X) or
method.scorer.supports_sparse_data))]
scorers = []
self.Error.inadequate_learner.clear()
for scorer in self.scorers.values():
if scorer.problem_type in (self.problem_type_mode, ProblemType.UNSUPERVISED):
scorers.append(scorer)
else:
self.Error.inadequate_learner(scorer.name, scorer.learner_adequacy_err_msg)
method_scores = tuple(self.get_method_scores(method)
for method in methods)
scorer_scores, scorer_labels = (), ()
if scorers:
scorer_scores, scorer_labels = zip(*(self.get_scorer_scores(scorer)
for scorer in scorers))
scorer_labels = tuple(chain.from_iterable(scorer_labels))
labels = tuple(method.shortname for method in methods) + scorer_labels
model_array = np.column_stack(
([len(a.values) if a.is_discrete else np.nan
for a in self.data.domain.attributes],) +
(method_scores if method_scores else ()) +
(scorer_scores if scorer_scores else ())
)
for column, values in enumerate(model_array.T):
self.ranksModel.setExtremesFrom(column, values)
self.ranksModel.wrap(model_array.tolist())
self.ranksModel.setHorizontalHeaderLabels(('#',) + labels)
self.ranksView.setColumnWidth(0, 40)
# Re-apply sort
try:
sort_column, sort_order = self.sorting
if sort_column < len(labels):
# adds 1 for '#' (discrete count) column
self.ranksModel.sort(sort_column + 1, sort_order)
self.ranksView.horizontalHeader().setSortIndicator(sort_column + 1, sort_order)
except ValueError:
pass
self.autoSelection()
self.Outputs.scores.send(self.create_scores_table(labels))
def on_select(self):
# Save indices of attributes in the original, unsorted domain
self.selected_rows = self.ranksModel.mapToSourceRows([
i.row() for i in self.ranksView.selectionModel().selectedRows(0)])
self.commit()
def setSelectionMethod(self, method):
self.selectionMethod = method
self.selectButtons.button(method).setChecked(True)
self.autoSelection()
def autoSelection(self):
selModel = self.ranksView.selectionModel()
model = self.ranksModel
rowCount = model.rowCount()
columnCount = model.columnCount()
if self.selectionMethod == OWRank.SelectNone:
selection = QItemSelection()
elif self.selectionMethod == OWRank.SelectAll:
selection = QItemSelection(
model.index(0, 0),
model.index(rowCount - 1, columnCount - 1)
)
elif self.selectionMethod == OWRank.SelectNBest:
nSelected = min(self.nSelected, rowCount)
selection = QItemSelection(
model.index(0, 0),
model.index(nSelected - 1, columnCount - 1)
)
else:
selection = QItemSelection()
if len(self.selected_rows):
for row in model.mapFromSourceRows(self.selected_rows):
selection.append(QItemSelectionRange(
model.index(row, 0), model.index(row, columnCount - 1)))
selModel.select(selection, QItemSelectionModel.ClearAndSelect)
def headerClick(self, index):
if index >= 1 and self.selectionMethod == OWRank.SelectNBest:
# Reselect the top ranked attributes
self.autoSelection()
# Store the header states
sort_order = self.ranksModel.sortOrder()
sort_column = self.ranksModel.sortColumn() - 1 # -1 for '#' (discrete count) column
self.sorting = (sort_column, sort_order)
def methodSelectionChanged(self, state, method_name):
if state == Qt.Checked:
self.selected_methods.add(method_name)
elif method_name in self.selected_methods:
self.selected_methods.remove(method_name)
self.updateScores()
def send_report(self):
if not self.data:
return
self.report_domain("Input", self.data.domain)
self.report_table("Ranks", self.ranksView, num_format="{:.3f}")
if self.out_domain_desc is not None:
self.report_items("Output", self.out_domain_desc)
def commit(self):
selected_attrs = []
if self.data is not None:
selected_attrs = [self.data.domain.attributes[i]
for i in self.selected_rows]
if not selected_attrs:
self.Outputs.reduced_data.send(None)
self.Outputs.features.send(None)
self.out_domain_desc = None
else:
reduced_domain = Domain(
selected_attrs, self.data.domain.class_var, self.data.domain.metas)
data = self.data.transform(reduced_domain)
self.Outputs.reduced_data.send(data)
self.Outputs.features.send(AttributeList(selected_attrs))
self.out_domain_desc = report.describe_domain(data.domain)
def create_scores_table(self, labels):
model_list = self.ranksModel.tolist()
if not model_list or len(model_list[0]) == 1: # Empty or just n_values column
return None
domain = Domain([ContinuousVariable(label) for label in labels],
metas=[StringVariable("Feature")])
# Prevent np.inf scores
finfo = np.finfo(np.float64)
scores = np.clip(np.array(model_list)[:, 1:], finfo.min, finfo.max)
feature_names = np.array([a.name for a in self.data.domain.attributes])
# Reshape to 2d array as Table does not like 1d arrays
feature_names = feature_names[:, None]
new_table = Table(domain, scores, metas=feature_names)
new_table.name = "Feature Scores"
return new_table
@classmethod
def migrate_settings(cls, settings, version):
# If older settings, restore sort header to default
# Saved selected_rows will likely be incorrect
if version is None or version < 2:
column, order = 0, Qt.DescendingOrder
headerState = settings.pop("headerState", None)
# Lacking knowledge of last problemType, use discrete ranks view's ordering
if isinstance(headerState, (tuple, list)):
headerState = headerState[0]
if isinstance(headerState, bytes):
hview = QHeaderView(Qt.Horizontal)
hview.restoreState(headerState)
column, order = hview.sortIndicatorSection() - 1, hview.sortIndicatorOrder()
settings["sorting"] = (column, order)
@classmethod
def migrate_context(cls, context, version):
if version is None or version < 2:
# Old selection was saved as sorted indices. New selection is original indices.
# Since we can't devise the latter without first computing the ranks,
# just reset the selection to avoid confusion.
context.values['selected_rows'] = []
