def updateRulesModel(self):
table = []
if self.classifier is not None:
for i, r in enumerate(self.classifier.rules):
table.append(
(int(r.complexity), r.quality, r.classDistribution.abs,
str(r.classifier.defaultValue), r.classDistribution,
self.ruleText(r)))
self.rulesTableModel = PyTableModel(table, self.headers)
self.proxyModel.setSourceModel(self.rulesTableModel)
self.tableView.resizeColumnsToContents()
self.tableView.resizeRowsToContents()
self.updateVisibleColumns(
) # if the widget got data for the first time
def updateRulesModel(self):
table = []
if self.classifier is not None:
for i, r in enumerate(self.classifier.rules):
table.append((int(r.complexity),
r.quality,
r.classDistribution.abs,
str(r.classifier.defaultValue),
r.classDistribution,
self.ruleText(r)))
self.rulesTableModel = PyTableModel(table, self.headers)
self.proxyModel.setSourceModel(self.rulesTableModel)
self.tableView.resizeColumnsToContents()
self.tableView.resizeRowsToContents()
self.updateVisibleColumns() # if the widget got data for the first time
def __init__(self,
parent=None,
signalManager=None,
name="CN2 Rules Viewer"):
OWWidget.__init__(self, parent, signalManager, name)
self.inputs = [("Rule Classifier", orange.RuleClassifier,
self.setRuleClassifier)]
self.outputs = [("Data", ExampleTable), ("Features", AttributeList)]
self.show_Rule_length = True
self.show_Rule_quality = True
self.show_Coverage = True
self.show_Predicted_class = True
self.show_Distribution = True
self.show_Rule = True
self.autoCommit = False
self.selectedAttrsOnly = True
self.loadSettings()
#####
# GUI
#####
box = OWGUI.widgetBox(self.controlArea, "Show Info", addSpace=True)
box.layout().setSpacing(3)
self.headers = [
"Rule length", "Rule quality", "Coverage", "Predicted class",
"Distribution", "Rule"
]
for i, header in enumerate(self.headers):
OWGUI.checkBox(box,
self,
"show_%s" % header.replace(" ", "_"),
header,
tooltip="Show %s column" % header.lower(),
callback=self.updateVisibleColumns)
box = OWGUI.widgetBox(self.controlArea, "Output")
box.layout().setSpacing(3)
cb = OWGUI.checkBox(box,
self,
"autoCommit",
"Commit on any change",
callback=self.commitIf)
OWGUI.checkBox(box,
self,
"selectedAttrsOnly",
"Selected attributes only",
tooltip="Send selected attributes only",
callback=self.commitIf)
b = OWGUI.button(box,
self,
"Commit",
callback=self.commit,
default=True)
OWGUI.setStopper(self, b, cb, "changedFlag", callback=self.commit)
OWGUI.rubber(self.controlArea)
self.tableView = QTableView()
self.tableView.setItemDelegate(PyObjectItemDelegate(self))
self.tableView.setItemDelegateForColumn(1, PyFloatItemDelegate(self))
self.tableView.setItemDelegateForColumn(2, PyFloatItemDelegate(self))
self.tableView.setItemDelegateForColumn(4,
DistributionItemDelegate(self))
self.tableView.setItemDelegateForColumn(
5, MultiLineStringItemDelegate(self))
self.tableView.setSortingEnabled(True)
self.tableView.setSelectionBehavior(QTableView.SelectRows)
self.tableView.setAlternatingRowColors(True)
self.rulesTableModel = PyTableModel([], self.headers)
self.proxyModel = QSortFilterProxyModel(self)
self.proxyModel.setSourceModel(self.rulesTableModel)
self.tableView.setModel(self.proxyModel)
self.connect(
self.tableView.selectionModel(),
SIGNAL("selectionChanged(QItemSelection, QItemSelection)"),
lambda is1, is2: self.commitIf())
self.connect(self.tableView.horizontalHeader(),
SIGNAL("sectionClicked(int)"),
lambda section: self.tableView.resizeRowsToContents())
self.mainArea.layout().addWidget(self.tableView)
self.updateVisibleColumns()
self.changedFlag = False
self.classifier = None
self.rules = []
self.resize(800, 600)
class OWCN2RulesViewer(OWWidget):
settingsList = [
"show_Rule_length", "show_Rule_quality", "show_Coverage",
"show_Predicted_class", "show_Distribution", "show_Rule"
]
def __init__(self,
parent=None,
signalManager=None,
name="CN2 Rules Viewer"):
OWWidget.__init__(self, parent, signalManager, name)
self.inputs = [("Rule Classifier", orange.RuleClassifier,
self.setRuleClassifier)]
self.outputs = [("Data", ExampleTable), ("Features", AttributeList)]
self.show_Rule_length = True
self.show_Rule_quality = True
self.show_Coverage = True
self.show_Predicted_class = True
self.show_Distribution = True
self.show_Rule = True
self.autoCommit = False
self.selectedAttrsOnly = True
self.loadSettings()
#####
# GUI
#####
box = OWGUI.widgetBox(self.controlArea, "Show Info", addSpace=True)
box.layout().setSpacing(3)
self.headers = [
"Rule length", "Rule quality", "Coverage", "Predicted class",
"Distribution", "Rule"
]
for i, header in enumerate(self.headers):
OWGUI.checkBox(box,
self,
"show_%s" % header.replace(" ", "_"),
header,
tooltip="Show %s column" % header.lower(),
callback=self.updateVisibleColumns)
box = OWGUI.widgetBox(self.controlArea, "Output")
box.layout().setSpacing(3)
cb = OWGUI.checkBox(box,
self,
"autoCommit",
"Commit on any change",
callback=self.commitIf)
OWGUI.checkBox(box,
self,
"selectedAttrsOnly",
"Selected attributes only",
tooltip="Send selected attributes only",
callback=self.commitIf)
b = OWGUI.button(box,
self,
"Commit",
callback=self.commit,
default=True)
OWGUI.setStopper(self, b, cb, "changedFlag", callback=self.commit)
OWGUI.rubber(self.controlArea)
self.tableView = QTableView()
self.tableView.setItemDelegate(PyObjectItemDelegate(self))
self.tableView.setItemDelegateForColumn(1, PyFloatItemDelegate(self))
self.tableView.setItemDelegateForColumn(2, PyFloatItemDelegate(self))
self.tableView.setItemDelegateForColumn(4,
DistributionItemDelegate(self))
self.tableView.setItemDelegateForColumn(
5, MultiLineStringItemDelegate(self))
self.tableView.setSortingEnabled(True)
self.tableView.setSelectionBehavior(QTableView.SelectRows)
self.tableView.setAlternatingRowColors(True)
self.rulesTableModel = PyTableModel([], self.headers)
self.proxyModel = QSortFilterProxyModel(self)
self.proxyModel.setSourceModel(self.rulesTableModel)
self.tableView.setModel(self.proxyModel)
self.connect(
self.tableView.selectionModel(),
SIGNAL("selectionChanged(QItemSelection, QItemSelection)"),
lambda is1, is2: self.commitIf())
self.connect(self.tableView.horizontalHeader(),
SIGNAL("sectionClicked(int)"),
lambda section: self.tableView.resizeRowsToContents())
self.mainArea.layout().addWidget(self.tableView)
self.updateVisibleColumns()
self.changedFlag = False
self.classifier = None
self.rules = []
self.resize(800, 600)
def sendReport(self):
nrules = self.rulesTableModel.rowCount()
print nrules
if not nrules:
self.reportRaw("<p>No rules.</p>")
return
shown = [
i for i, header in enumerate(self.headers)
if getattr(self, "show_%s" % header.replace(" ", "_"))
]
rep = '<table>\n<tr style="height: 2px"><th colspan="11" style="border-bottom: thin solid black; height: 2px;">\n'
rep += "<tr>" + "".join("<th>%s</th>" % self.headers[i]
for i in shown) + "</tr>\n"
for row in range(nrules):
rep += "<tr>"
for col in shown:
data = _toPyObject(
self.rulesTableModel.data(
self.rulesTableModel.createIndex(row, col)))
if col == 4:
rep += "<td>%s</td>" % ":".join(map(str, data))
elif col in (0, 3):
rep += '<td align="center">%s</td>' % data
elif col in (1, 2):
rep += '<td align="right">%.3f </td>' % data
else:
rep += '<td>%s</td>' % data
rep += '<tr style="height: 2px"><th colspan="11" style="border-bottom: thin solid black; height: 2px;">\n</table>\n'
self.reportRaw(rep)
def setRuleClassifier(self, classifier=None):
self.classifier = classifier
if classifier is not None:
self.rules = classifier.rules
else:
self.rules = []
def handleNewSignals(self):
self.updateRulesModel()
self.commit()
def updateRulesModel(self):
table = []
if self.classifier is not None:
for i, r in enumerate(self.classifier.rules):
table.append(
(int(r.complexity), r.quality, r.classDistribution.abs,
str(r.classifier.defaultValue), r.classDistribution,
self.ruleText(r)))
self.rulesTableModel = PyTableModel(table, self.headers)
self.proxyModel.setSourceModel(self.rulesTableModel)
self.tableView.resizeColumnsToContents()
self.tableView.resizeRowsToContents()
self.updateVisibleColumns(
) # if the widget got data for the first time
def ruleText(self, rule):
text = rule_to_string(rule, show_distribution=False)
p = re.compile(r"[0-9]\.[0-9]+")
text = p.sub(lambda match: "%.2f" % float(match.group()[0]), text)
text = text.replace("AND", "AND\n ")
text = text.replace("THEN", "\nTHEN")
return text
def updateVisibleColumns(self):
anyVisible = False
for i, header in enumerate(self.headers):
visible = getattr(self, "show_%s" % header.replace(" ", "_"))
self.tableView.horizontalHeader().setSectionHidden(i, not visible)
anyVisible = anyVisible or visible
# report button is not available if not running canvas
if hasattr(self, "reportButton"):
self.reportButton.setEnabled(anyVisible)
def commitIf(self):
if self.autoCommit:
self.commit()
else:
self.changedFlag = True
def selectedAttrsFromRules(self, rules):
selected = []
for rule in rules:
for c in rule.filter.conditions:
selected.append(rule.filter.domain[c.position])
return set(selected)
def selectedExamplesFromRules(self, rules, examples):
selected = []
for rule in rules:
selected.extend(examples.filterref(rule.filter))
rule.filter.negate = 1
examples = examples.filterref(rule.filter)
rule.filter.negate = 0
return selected
def commit(self):
rows = self.tableView.selectionModel().selectedRows()
rows = [self.proxyModel.mapToSource(index) for index in rows]
rows = [index.row() for index in rows]
selectedRules = [self.classifier.rules[row] for row in rows]
if selectedRules:
examples = self.classifier.examples
selectedExamples = self.selectedExamplesFromRules(
selectedRules, self.classifier.examples)
selectedAttrs = self.selectedAttrsFromRules(selectedRules)
selectedAttrs = [
attr for attr in examples.domain.attributes
if attr in selectedAttrs
] # restore the order
if self.selectedAttrsOnly:
domain = orange.Domain(selectedAttrs, examples.domain.classVar)
domain.addmetas(examples.domain.getmetas())
selectedExamples = orange.ExampleTable(domain,
selectedExamples)
else:
selectedExamples = orange.ExampleTable(selectedExamples)
self.send("Data", selectedExamples)
self.send("Features", orange.VarList(list(selectedAttrs)))
else:
self.send("Data", None)
self.send("Features", None)
self.changedFlag = False
def __init__(self, parent=None, signalManager=None, name="CN2 Rules Viewer"):
OWWidget.__init__(self, parent, signalManager, name)
self.inputs = [("Rule Classifier", orange.RuleClassifier, self.setRuleClassifier)]
self.outputs = [("Data", ExampleTable), ("Features", AttributeList)]
self.show_Rule_length = True
self.show_Rule_quality = True
self.show_Coverage = True
self.show_Predicted_class = True
self.show_Distribution = True
self.show_Rule = True
self.autoCommit = False
self.selectedAttrsOnly = True
self.loadSettings()
#####
# GUI
#####
box = OWGUI.widgetBox(self.controlArea, "Show Info", addSpace=True)
box.layout().setSpacing(3)
self.headers = ["Rule length",
"Rule quality",
"Coverage",
"Predicted class",
"Distribution",
"Rule"]
for i, header in enumerate(self.headers):
OWGUI.checkBox(box, self, "show_%s" % header.replace(" ", "_"), header,
tooltip="Show %s column" % header.lower(),
callback=self.updateVisibleColumns)
box = OWGUI.widgetBox(self.controlArea, "Output")
box.layout().setSpacing(3)
cb = OWGUI.checkBox(box, self, "autoCommit", "Commit on any change",
callback=self.commitIf)
OWGUI.checkBox(box, self, "selectedAttrsOnly", "Selected attributes only",
tooltip="Send selected attributes only",
callback=self.commitIf)
b = OWGUI.button(box, self, "Commit", callback=self.commit, default=True)
OWGUI.setStopper(self, b, cb, "changedFlag", callback=self.commit)
OWGUI.rubber(self.controlArea)
self.tableView = QTableView()
self.tableView.setItemDelegate(PyObjectItemDelegate(self))
self.tableView.setItemDelegateForColumn(1, PyFloatItemDelegate(self))
self.tableView.setItemDelegateForColumn(2, PyFloatItemDelegate(self))
self.tableView.setItemDelegateForColumn(4, DistributionItemDelegate(self))
self.tableView.setItemDelegateForColumn(5, MultiLineStringItemDelegate(self))
self.tableView.setSortingEnabled(True)
self.tableView.setSelectionBehavior(QTableView.SelectRows)
self.tableView.setAlternatingRowColors(True)
self.rulesTableModel = PyTableModel([], self.headers)
self.proxyModel = QSortFilterProxyModel(self)
self.proxyModel.setSourceModel(self.rulesTableModel)
self.tableView.setModel(self.proxyModel)
self.connect(self.tableView.selectionModel(),
SIGNAL("selectionChanged(QItemSelection, QItemSelection)"),
lambda is1, is2: self.commitIf())
self.connect(self.tableView.horizontalHeader(), SIGNAL("sectionClicked(int)"), lambda section: self.tableView.resizeRowsToContents())
self.mainArea.layout().addWidget(self.tableView)
self.updateVisibleColumns()
self.changedFlag = False
self.classifier = None
self.rules = []
self.resize(800, 600)
class OWCN2RulesViewer(OWWidget):
settingsList = ["show_Rule_length", "show_Rule_quality", "show_Coverage",
"show_Predicted_class", "show_Distribution", "show_Rule"]
def __init__(self, parent=None, signalManager=None, name="CN2 Rules Viewer"):
OWWidget.__init__(self, parent, signalManager, name)
self.inputs = [("Rule Classifier", orange.RuleClassifier, self.setRuleClassifier)]
self.outputs = [("Data", ExampleTable), ("Features", AttributeList)]
self.show_Rule_length = True
self.show_Rule_quality = True
self.show_Coverage = True
self.show_Predicted_class = True
self.show_Distribution = True
self.show_Rule = True
self.autoCommit = False
self.selectedAttrsOnly = True
self.loadSettings()
#####
# GUI
#####
box = OWGUI.widgetBox(self.controlArea, "Show Info", addSpace=True)
box.layout().setSpacing(3)
self.headers = ["Rule length",
"Rule quality",
"Coverage",
"Predicted class",
"Distribution",
"Rule"]
for i, header in enumerate(self.headers):
OWGUI.checkBox(box, self, "show_%s" % header.replace(" ", "_"), header,
tooltip="Show %s column" % header.lower(),
callback=self.updateVisibleColumns)
box = OWGUI.widgetBox(self.controlArea, "Output")
box.layout().setSpacing(3)
cb = OWGUI.checkBox(box, self, "autoCommit", "Commit on any change",
callback=self.commitIf)
OWGUI.checkBox(box, self, "selectedAttrsOnly", "Selected attributes only",
tooltip="Send selected attributes only",
callback=self.commitIf)
b = OWGUI.button(box, self, "Commit", callback=self.commit, default=True)
OWGUI.setStopper(self, b, cb, "changedFlag", callback=self.commit)
OWGUI.rubber(self.controlArea)
self.tableView = QTableView()
self.tableView.setItemDelegate(PyObjectItemDelegate(self))
self.tableView.setItemDelegateForColumn(1, PyFloatItemDelegate(self))
self.tableView.setItemDelegateForColumn(2, PyFloatItemDelegate(self))
self.tableView.setItemDelegateForColumn(4, DistributionItemDelegate(self))
self.tableView.setItemDelegateForColumn(5, MultiLineStringItemDelegate(self))
self.tableView.setSortingEnabled(True)
self.tableView.setSelectionBehavior(QTableView.SelectRows)
self.tableView.setAlternatingRowColors(True)
self.rulesTableModel = PyTableModel([], self.headers)
self.proxyModel = QSortFilterProxyModel(self)
self.proxyModel.setSourceModel(self.rulesTableModel)
self.tableView.setModel(self.proxyModel)
self.connect(self.tableView.selectionModel(),
SIGNAL("selectionChanged(QItemSelection, QItemSelection)"),
lambda is1, is2: self.commitIf())
self.connect(self.tableView.horizontalHeader(), SIGNAL("sectionClicked(int)"), lambda section: self.tableView.resizeRowsToContents())
self.mainArea.layout().addWidget(self.tableView)
self.updateVisibleColumns()
self.changedFlag = False
self.classifier = None
self.rules = []
self.resize(800, 600)
def sendReport(self):
nrules = self.rulesTableModel.rowCount()
print nrules
if not nrules:
self.reportRaw("<p>No rules.</p>")
return
shown = [i for i, header in enumerate(self.headers) if getattr(self, "show_%s" % header.replace(" ", "_"))]
rep = '<table>\n<tr style="height: 2px"><th colspan="11" style="border-bottom: thin solid black; height: 2px;">\n'
rep += "<tr>"+"".join("<th>%s</th>" % self.headers[i] for i in shown)+"</tr>\n"
for row in range(nrules):
rep += "<tr>"
for col in shown:
data = _toPyObject(self.rulesTableModel.data(self.rulesTableModel.createIndex(row, col)))
if col==4:
rep += "<td>%s</td>" % ":".join(map(str, data))
elif col in (0, 3):
rep += '<td align="center">%s</td>' % data
elif col in (1, 2):
rep += '<td align="right">%.3f </td>' % data
else:
rep += '<td>%s</td>' % data
rep += '<tr style="height: 2px"><th colspan="11" style="border-bottom: thin solid black; height: 2px;">\n</table>\n'
self.reportRaw(rep)
def setRuleClassifier(self, classifier=None):
self.classifier = classifier
if classifier is not None:
self.rules = classifier.rules
else:
self.rules = []
def handleNewSignals(self):
self.updateRulesModel()
self.commit()
def updateRulesModel(self):
table = []
if self.classifier is not None:
for i, r in enumerate(self.classifier.rules):
table.append((int(r.complexity),
r.quality,
r.classDistribution.abs,
str(r.classifier.defaultValue),
r.classDistribution,
self.ruleText(r)))
self.rulesTableModel = PyTableModel(table, self.headers)
self.proxyModel.setSourceModel(self.rulesTableModel)
self.tableView.resizeColumnsToContents()
self.tableView.resizeRowsToContents()
self.updateVisibleColumns() # if the widget got data for the first time
def ruleText(self, rule):
text = rule_to_string(rule, show_distribution=False)
p = re.compile(r"[0-9]\.[0-9]+")
text = p.sub(lambda match: "%.2f" % float(match.group()[0]), text)
text = text.replace("AND", "AND\n ")
text = text.replace("THEN", "\nTHEN")
return text
def updateVisibleColumns(self):
anyVisible = False
for i, header in enumerate(self.headers):
visible = getattr(self, "show_%s" % header.replace(" ", "_"))
self.tableView.horizontalHeader().setSectionHidden(i, not visible)
anyVisible = anyVisible or visible
# report button is not available if not running canvas
if hasattr(self, "reportButton"):
self.reportButton.setEnabled(anyVisible)
def commitIf(self):
if self.autoCommit:
self.commit()
else:
self.changedFlag = True
def selectedAttrsFromRules(self, rules):
selected = []
for rule in rules:
for c in rule.filter.conditions:
selected.append(rule.filter.domain[c.position])
return set(selected)
def selectedExamplesFromRules(self, rules, examples):
selected = []
for rule in rules:
selected.extend(examples.filterref(rule.filter))
rule.filter.negate=1
examples = examples.filterref(rule.filter)
rule.filter.negate=0
return selected
def commit(self):
rows = self.tableView.selectionModel().selectedRows()
rows = [self.proxyModel.mapToSource(index) for index in rows]
rows = [index.row() for index in rows]
selectedRules = [self.classifier.rules[row] for row in rows]
if selectedRules:
examples = self.classifier.examples
selectedExamples = self.selectedExamplesFromRules(selectedRules, self.classifier.examples)
selectedAttrs = self.selectedAttrsFromRules(selectedRules)
selectedAttrs = [attr for attr in examples.domain.attributes if attr in selectedAttrs] # restore the order
if self.selectedAttrsOnly:
domain = orange.Domain(selectedAttrs, examples.domain.classVar)
domain.addmetas(examples.domain.getmetas())
selectedExamples = orange.ExampleTable(domain, selectedExamples)
else:
selectedExamples = orange.ExampleTable(selectedExamples)
self.send("Data", selectedExamples)
self.send("Features", orange.VarList(list(selectedAttrs)))
else:
self.send("Data", None)
self.send("Features", None)
self.changedFlag = False
