def __init__(self, parent=None, signalManager=None):
OWWidget.__init__(self, parent, signalManager, 'LearningCurveC')
self.inputs = [("Data", ExampleTable, self.dataset),
("Learner", orange.Learner, self.learner, Multiple)]
self.folds = 5 # cross validation folds
self.steps = 10 # points in the learning curve
self.scoringF = 0 # scoring function
self.commitOnChange = 1 # compute curve on any change of parameters
self.graphPointSize = 5 # size of points in the graphs
self.graphDrawLines = 1 # draw lines between points in the graph
self.graphShowGrid = 1 # show gridlines in the graph
self.selectedLearners = []
self.loadSettings()
warnings.filterwarnings("ignore", ".*builtin attribute.*",
orange.AttributeWarning)
self.setCurvePoints(
) # sets self.curvePoints, self.steps equidistantpoints from 1/self.steps to 1
self.scoring = [("Classification Accuracy", orngStat.CA),
("AUC", orngStat.AUC),
("BrierScore", orngStat.BrierScore),
("Information Score", orngStat.IS),
("Sensitivity", orngStat.sens),
("Specificity", orngStat.spec)]
self.learners = [
] # list of current learners from input channel, tuples (id, learner)
self.data = None # data on which to construct the learning curve
self.curves = [
] # list of evaluation results (one per learning curve point)
self.scores = [] # list of current scores, learnerID:[learner scores]
# GUI
box = OWGUI.widgetBox(self.controlArea, "Info")
self.infoa = OWGUI.widgetLabel(box, 'No data on input.')
self.infob = OWGUI.widgetLabel(box, 'No learners.')
## class selection (classQLB)
OWGUI.separator(self.controlArea)
self.cbox = OWGUI.widgetBox(self.controlArea, "Learners")
self.llb = OWGUI.listBox(self.cbox,
self,
"selectedLearners",
selectionMode=QListWidget.MultiSelection,
callback=self.learnerSelectionChanged)
self.llb.setMinimumHeight(50)
self.blockSelectionChanges = 0
OWGUI.separator(self.controlArea)
box = OWGUI.widgetBox(self.controlArea, "Evaluation Scores")
scoringNames = [x[0] for x in self.scoring]
OWGUI.comboBox(box,
self,
"scoringF",
items=scoringNames,
callback=self.computeScores)
OWGUI.separator(self.controlArea)
box = OWGUI.widgetBox(self.controlArea, "Options")
OWGUI.spin(box,
self,
'folds',
2,
100,
step=1,
label='Cross validation folds: ',
callback=lambda: self.computeCurve(self.commitOnChange))
OWGUI.spin(box,
self,
'steps',
2,
100,
step=1,
label='Learning curve points: ',
callback=[
self.setCurvePoints,
lambda: self.computeCurve(self.commitOnChange)
])
OWGUI.checkBox(box, self, 'commitOnChange',
'Apply setting on any change')
self.commitBtn = OWGUI.button(box,
self,
"Apply Setting",
callback=self.computeCurve,
disabled=1)
# start of content (right) area
tabs = OWGUI.tabWidget(self.mainArea)
# graph widget
tab = OWGUI.createTabPage(tabs, "Graph")
self.graph = OWGraph(tab)
self.graph.setAxisAutoScale(QwtPlot.xBottom)
self.graph.setAxisAutoScale(QwtPlot.yLeft)
tab.layout().addWidget(self.graph)
self.setGraphGrid()
# table widget
tab = OWGUI.createTabPage(tabs, "Table")
self.table = OWGUI.table(tab, selectionMode=QTableWidget.NoSelection)
self.resize(550, 200)
def __init__(self,
parent=None,
signalManager=None,
name="Correspondence Analysis"):
OWWidget.__init__(self, parent, signalManager, name, wantGraph=True)
self.inputs = [("Data", ExampleTable, self.setData)]
self.outputs = [("Selected Data", ExampleTable),
("Remaining Data", ExampleTable)]
self.colAttr = 0
self.rowAttr = 1
self.xPrincipalAxis = 0
self.yPrincipalAxis = 1
self.pointSize = 6
self.alpha = 240
self.jitter = 0
self.showGridlines = 0
self.percCol = 100
self.percRow = 100
self.autoSend = 0
self.loadSettings()
# GUI
self.graph = OWGraph(self)
self.graph.sendData = self.sendData
self.mainArea.layout().addWidget(self.graph)
self.controlAreaTab = OWGUI.tabWidget(self.controlArea)
# Graph tab
self.graphTab = graphTab = OWGUI.createTabPage(self.controlAreaTab,
"Graph")
self.colAttrCB = OWGUI.comboBox(graphTab,
self,
"colAttr",
"Column Attribute",
tooltip="Column attribute",
callback=self.runCA)
self.rowAttrCB = OWGUI.comboBox(graphTab,
self,
"rowAttr",
"Row Attribute",
tooltip="Row attribute",
callback=self.runCA)
self.xAxisCB = OWGUI.comboBox(graphTab,
self,
"xPrincipalAxis",
"Principal Axis X",
tooltip="Principal axis X",
callback=self.updateGraph)
self.yAxisCB = OWGUI.comboBox(graphTab,
self,
"yPrincipalAxis",
"Principal Axis Y",
tooltip="Principal axis Y",
callback=self.updateGraph)
box = OWGUI.widgetBox(graphTab, "Contribution to Inertia")
self.contributionInfo = OWGUI.widgetLabel(box, "NA\nNA")
OWGUI.hSlider(
graphTab,
self,
"percCol",
"Percent of Column Points",
1,
100,
1,
callback=self.updateGraph,
tooltip=
"The percent of column points with the largest contribution to inertia"
)
OWGUI.hSlider(
graphTab,
self,
"percRow",
"Percent of Row Points",
1,
100,
1,
callback=self.updateGraph,
tooltip=
"The percent of row points with the largest contribution to inertia"
)
self.zoomSelect = ZoomSelectToolbar(self, graphTab, self.graph,
self.autoSend)
OWGUI.rubber(graphTab)
# Settings tab
self.settingsTab = settingsTab = OWGUI.createTabPage(
self.controlAreaTab, "Settings")
OWGUI.hSlider(settingsTab,
self,
"pointSize",
"Point Size",
3,
20,
step=1,
callback=self.setPointSize)
OWGUI.hSlider(settingsTab,
self,
"alpha",
"Transparancy",
1,
255,
step=1,
callback=self.updateAlpha)
OWGUI.hSlider(settingsTab,
self,
"jitter",
"Jitter Points",
0,
20,
step=1,
callback=self.updateGraph)
box = OWGUI.widgetBox(settingsTab, "General Settings")
OWGUI.checkBox(box,
self,
"showGridlines",
"Show gridlines",
tooltip="Show gridlines in the plot.",
callback=self.updateGridlines)
OWGUI.rubber(settingsTab)
self.connect(self.graphButton, SIGNAL("clicked()"),
self.graph.saveToFile)
self.contingency = None
self.contColAttr = None
self.contRowAttr = None
self.resize(800, 600)
