def __init__(self, parent=None, signalManager=None):
OWWidget.__init__(self, parent, signalManager, "Parallel Coordinates",
True)
#add a graph widget
self.graph = OWParallelGraph(self, self.mainArea)
self.mainArea.layout().addWidget(self.graph)
self.showAllAttributes = 0
self.inputs = [("Data", ExampleTable, self.setData, Default),
("Data Subset", ExampleTable, self.setSubsetData),
("Features", AttributeList, self.setShownAttributes)]
self.outputs = [("Selected Data", ExampleTable),
("Other Data", ExampleTable),
("Features", AttributeList)]
#set default settings
self.data = None
self.subsetData = None
self.autoSendSelection = 1
self.attrDiscOrder = "Unordered"
self.attrContOrder = "Unordered"
self.projections = None
self.correlationDict = {}
self.middleLabels = "Correlations"
self.attributeSelectionList = None
self.toolbarSelection = 0
self.colorSettings = None
self.selectedSchemaIndex = 0
self.graph.jitterSize = 10
self.graph.showDistributions = 1
self.graph.showStatistics = 0
self.graph.showAttrValues = 1
self.graph.useSplines = 0
self.graph.enabledLegend = 1
#load settings
self.loadSettings()
#GUI
self.tabs = OWGUI.tabWidget(self.controlArea)
self.GeneralTab = OWGUI.createTabPage(self.tabs, "Main")
self.SettingsTab = OWGUI.createTabPage(self.tabs, "Settings")
self.createShowHiddenLists(self.GeneralTab, callback=self.updateGraph)
self.connect(self.shownAttribsLB,
SIGNAL('itemDoubleClicked(QListWidgetItem*)'),
self.flipAttribute)
self.optimizationDlg = ParallelOptimization(
self, signalManager=self.signalManager)
self.optimizationDlgButton = OWGUI.button(
self.GeneralTab,
self,
"Optimization Dialog",
callback=self.optimizationDlg.reshow,
debuggingEnabled=0)
self.zoomSelectToolbar = OWToolbars.ZoomSelectToolbar(
self,
self.GeneralTab,
self.graph,
self.autoSendSelection,
buttons=(1, 2, 0, 7, 8))
self.connect(self.zoomSelectToolbar.buttonSendSelections,
SIGNAL("clicked()"), self.sendSelections)
#connect controls to appropriate functions
self.connect(self.graphButton, SIGNAL("clicked()"),
self.graph.saveToFile)
# ####################################
# SETTINGS functionality
box = OWGUI.widgetBox(self.SettingsTab, "Transparency")
OWGUI.hSlider(box,
self,
'graph.alphaValue',
label="Examples: ",
minValue=0,
maxValue=255,
step=10,
callback=self.updateGraph,
tooltip="Alpha value used for drawing example lines")
OWGUI.hSlider(
box,
self,
'graph.alphaValue2',
label="Rest: ",
minValue=0,
maxValue=255,
step=10,
callback=self.updateGraph,
tooltip="Alpha value used to draw statistics, example subsets, ..."
)
box = OWGUI.widgetBox(self.SettingsTab, "Jittering Options")
OWGUI.comboBox(box,
self,
"graph.jitterSize",
label='Jittering size (% of size): ',
orientation='horizontal',
callback=self.setJitteringSize,
items=self.jitterSizeNums,
sendSelectedValue=1,
valueType=float)
# visual settings
box = OWGUI.widgetBox(self.SettingsTab, "Visual Settings")
OWGUI.checkBox(box,
self,
'graph.showAttrValues',
'Show attribute values',
callback=self.updateGraph)
OWGUI.checkBox(box,
self,
'graph.useAntialiasing',
'Use antialiasing',
callback=self.updateGraph)
OWGUI.checkBox(box,
self,
'graph.useSplines',
'Show splines',
callback=self.updateGraph,
tooltip="Show lines using splines")
OWGUI.checkBox(box,
self,
'graph.enabledLegend',
'Show legend',
callback=self.updateGraph)
box = OWGUI.widgetBox(self.SettingsTab, "Axis Distance")
resizeColsBox = OWGUI.widgetBox(box, 0, "horizontal", 0)
OWGUI.label(resizeColsBox, self, "Increase/decrease distance: ")
OWGUI.toolButton(resizeColsBox,
self,
"+",
callback=self.increaseAxesDistance,
tooltip="Increase the distance between the axes",
width=30,
height=20)
OWGUI.toolButton(resizeColsBox,
self,
"-",
callback=self.decreaseAxesDistance,
tooltip="Decrease the distance between the axes",
width=30,
height=20)
OWGUI.rubber(resizeColsBox)
OWGUI.checkBox(
box,
self,
"graph.autoUpdateAxes",
"Auto scale X axis",
tooltip="Auto scale X axis to show all visualized attributes",
callback=self.updateGraph)
box = OWGUI.widgetBox(self.SettingsTab, "Statistical Information")
OWGUI.comboBox(
box,
self,
"graph.showStatistics",
label="Statistics: ",
orientation="horizontal",
labelWidth=90,
items=["No statistics", "Means, deviations", "Median, quartiles"],
callback=self.updateGraph,
sendSelectedValue=0,
valueType=int)
OWGUI.comboBox(
box,
self,
"middleLabels",
label="Middle labels: ",
orientation="horizontal",
labelWidth=90,
items=["No labels", "Correlations", "VizRank"],
callback=self.updateGraph,
tooltip=
"The information do you wish to view on top in the middle of coordinate axes",
sendSelectedValue=1,
valueType=str)
OWGUI.checkBox(
box,
self,
'graph.showDistributions',
'Show distributions',
callback=self.updateGraph,
tooltip=
"Show bars with distribution of class values (only for discrete attributes)"
)
box = OWGUI.widgetBox(self.SettingsTab,
"Colors",
orientation="horizontal")
OWGUI.button(
box,
self,
"Set colors",
self.setColors,
tooltip=
"Set the canvas background color and color palette for coloring continuous variables",
debuggingEnabled=0)
box = OWGUI.widgetBox(self.SettingsTab,
"Auto Send Selected Data When...")
OWGUI.checkBox(
box,
self,
'autoSendSelection',
'Adding/Removing selection areas',
callback=self.selectionChanged,
tooltip=
"Send selected data whenever a selection area is added or removed")
OWGUI.checkBox(
box,
self,
'graph.sendSelectionOnUpdate',
'Moving/Resizing selection areas',
tooltip=
"Send selected data when a user moves or resizes an existing selection area"
)
self.graph.autoSendSelectionCallback = self.selectionChanged
self.SettingsTab.layout().addStretch(100)
self.icons = self.createAttributeIconDict()
dlg = self.createColorDialog()
self.graph.contPalette = dlg.getContinuousPalette("contPalette")
self.graph.discPalette = dlg.getDiscretePalette("discPalette")
self.graph.setCanvasBackground(dlg.getColor("Canvas"))
apply([
self.zoomSelectToolbar.actionZooming,
self.zoomSelectToolbar.actionRectangleSelection,
self.zoomSelectToolbar.actionPolygonSelection
][self.toolbarSelection], [])
self.cbShowAllAttributes()
self.resize(900, 700)
def __init__(self, parent=None, signalManager=None):
OWWidget.__init__(self, parent, signalManager, "Parallel Coordinates", True)
#add a graph widget
self.graph = OWParallelGraph(self, self.mainArea)
self.mainArea.layout().addWidget(self.graph)
self.showAllAttributes = 0
self.inputs = [("Data", ExampleTable, self.setData, Default),
("Data Subset", ExampleTable, self.setSubsetData),
("Features", AttributeList, self.setShownAttributes)]
self.outputs = [("Selected Data", ExampleTable),
("Other Data", ExampleTable),
("Features", AttributeList)]
#set default settings
self.data = None
self.subsetData = None
self.autoSendSelection = 1
self.attrDiscOrder = "Unordered"
self.attrContOrder = "Unordered"
self.projections = None
self.correlationDict = {}
self.middleLabels = "Correlations"
self.attributeSelectionList = None
self.toolbarSelection = 0
self.colorSettings = None
self.selectedSchemaIndex = 0
self.graph.jitterSize = 10
self.graph.showDistributions = 1
self.graph.showStatistics = 0
self.graph.showAttrValues = 1
self.graph.useSplines = 0
self.graph.enabledLegend = 1
#load settings
self.loadSettings()
#GUI
self.tabs = OWGUI.tabWidget(self.controlArea)
self.GeneralTab = OWGUI.createTabPage(self.tabs, "Main")
self.SettingsTab = OWGUI.createTabPage(self.tabs, "Settings")
self.createShowHiddenLists(self.GeneralTab, callback=self.updateGraph)
self.connect(self.shownAttribsLB, SIGNAL('itemDoubleClicked(QListWidgetItem*)'), self.flipAttribute)
self.optimizationDlg = ParallelOptimization(self, signalManager=self.signalManager)
self.optimizationDlgButton = OWGUI.button(self.GeneralTab, self, "Optimization Dialog",
callback=self.optimizationDlg.reshow, debuggingEnabled=0)
self.zoomSelectToolbar = OWToolbars.ZoomSelectToolbar(self, self.GeneralTab, self.graph, self.autoSendSelection,
buttons=(1, 2, 0, 7, 8))
self.connect(self.zoomSelectToolbar.buttonSendSelections, SIGNAL("clicked()"), self.sendSelections)
#connect controls to appropriate functions
self.connect(self.graphButton, SIGNAL("clicked()"), self.graph.saveToFile)
# ####################################
# SETTINGS functionality
box = OWGUI.widgetBox(self.SettingsTab, "Transparency")
OWGUI.hSlider(box, self, 'graph.alphaValue', label="Examples: ", minValue=0, maxValue=255, step=10,
callback=self.updateGraph, tooltip="Alpha value used for drawing example lines")
OWGUI.hSlider(box, self, 'graph.alphaValue2', label="Rest: ", minValue=0, maxValue=255, step=10,
callback=self.updateGraph, tooltip="Alpha value used to draw statistics, example subsets, ...")
box = OWGUI.widgetBox(self.SettingsTab, "Jittering Options")
OWGUI.comboBox(box, self, "graph.jitterSize", label='Jittering size (% of size): ', orientation='horizontal',
callback=self.setJitteringSize, items=self.jitterSizeNums, sendSelectedValue=1, valueType=float)
# visual settings
box = OWGUI.widgetBox(self.SettingsTab, "Visual Settings")
OWGUI.checkBox(box, self, 'graph.showAttrValues', 'Show attribute values', callback=self.updateGraph)
OWGUI.checkBox(box, self, 'graph.useAntialiasing', 'Use antialiasing', callback=self.updateGraph)
OWGUI.checkBox(box, self, 'graph.useSplines', 'Show splines', callback=self.updateGraph,
tooltip="Show lines using splines")
OWGUI.checkBox(box, self, 'graph.enabledLegend', 'Show legend', callback=self.updateGraph)
box = OWGUI.widgetBox(self.SettingsTab, "Axis Distance")
resizeColsBox = OWGUI.widgetBox(box, 0, "horizontal", 0)
OWGUI.label(resizeColsBox, self, "Increase/decrease distance: ")
OWGUI.toolButton(resizeColsBox, self, "+", callback=self.increaseAxesDistance,
tooltip="Increase the distance between the axes", width=30, height=20)
OWGUI.toolButton(resizeColsBox, self, "-", callback=self.decreaseAxesDistance,
tooltip="Decrease the distance between the axes", width=30, height=20)
OWGUI.rubber(resizeColsBox)
OWGUI.checkBox(box, self, "graph.autoUpdateAxes", "Auto scale X axis",
tooltip="Auto scale X axis to show all visualized attributes", callback=self.updateGraph)
box = OWGUI.widgetBox(self.SettingsTab, "Statistical Information")
OWGUI.comboBox(box, self, "graph.showStatistics", label="Statistics: ", orientation="horizontal", labelWidth=90,
items=["No statistics", "Means, deviations", "Median, quartiles"], callback=self.updateGraph,
sendSelectedValue=0, valueType=int)
OWGUI.comboBox(box, self, "middleLabels", label="Middle labels: ", orientation="horizontal", labelWidth=90,
items=["No labels", "Correlations", "VizRank"], callback=self.updateGraph,
tooltip="The information do you wish to view on top in the middle of coordinate axes",
sendSelectedValue=1, valueType=str)
OWGUI.checkBox(box, self, 'graph.showDistributions', 'Show distributions', callback=self.updateGraph,
tooltip="Show bars with distribution of class values (only for discrete attributes)")
box = OWGUI.widgetBox(self.SettingsTab, "Colors", orientation="horizontal")
OWGUI.button(box, self, "Set colors", self.setColors,
tooltip="Set the canvas background color and color palette for coloring continuous variables",
debuggingEnabled=0)
box = OWGUI.widgetBox(self.SettingsTab, "Auto Send Selected Data When...")
OWGUI.checkBox(box, self, 'autoSendSelection', 'Adding/Removing selection areas',
callback=self.selectionChanged,
tooltip="Send selected data whenever a selection area is added or removed")
OWGUI.checkBox(box, self, 'graph.sendSelectionOnUpdate', 'Moving/Resizing selection areas',
tooltip="Send selected data when a user moves or resizes an existing selection area")
self.graph.autoSendSelectionCallback = self.selectionChanged
self.SettingsTab.layout().addStretch(100)
self.icons = self.createAttributeIconDict()
dlg = self.createColorDialog()
self.graph.contPalette = dlg.getContinuousPalette("contPalette")
self.graph.discPalette = dlg.getDiscretePalette("discPalette")
self.graph.setCanvasBackground(dlg.getColor("Canvas"))
apply([self.zoomSelectToolbar.actionZooming, self.zoomSelectToolbar.actionRectangleSelection,
self.zoomSelectToolbar.actionPolygonSelection][self.toolbarSelection], [])
self.cbShowAllAttributes()
self.resize(900, 700)
class OWParallelCoordinates(OWVisWidget):
settingsList = [
"graph.jitterSize", "graph.showDistributions", "graph.showAttrValues",
"graph.useAntialiasing", "graph.useSplines", "graph.alphaValue",
"graph.alphaValue2", "graph.enabledLegend", "graph.showStatistics",
"autoSendSelection", "toolbarSelection", "colorSettings",
"selectedSchemaIndex", "showAllAttributes"
]
jitterSizeNums = [0, 2, 5, 10, 15, 20, 30]
contextHandlers = {
"":
DomainContextHandler("", [
ContextField("shownAttributes",
DomainContextHandler.RequiredList,
selected="selectedShown",
reservoir="hiddenAttributes")
])
}
def __init__(self, parent=None, signalManager=None):
OWWidget.__init__(self, parent, signalManager, "Parallel Coordinates",
True)
#add a graph widget
self.graph = OWParallelGraph(self, self.mainArea)
self.mainArea.layout().addWidget(self.graph)
self.showAllAttributes = 0
self.inputs = [("Data", ExampleTable, self.setData, Default),
("Data Subset", ExampleTable, self.setSubsetData),
("Features", AttributeList, self.setShownAttributes)]
self.outputs = [("Selected Data", ExampleTable),
("Other Data", ExampleTable),
("Features", AttributeList)]
#set default settings
self.data = None
self.subsetData = None
self.autoSendSelection = 1
self.attrDiscOrder = "Unordered"
self.attrContOrder = "Unordered"
self.projections = None
self.correlationDict = {}
self.middleLabels = "Correlations"
self.attributeSelectionList = None
self.toolbarSelection = 0
self.colorSettings = None
self.selectedSchemaIndex = 0
self.graph.jitterSize = 10
self.graph.showDistributions = 1
self.graph.showStatistics = 0
self.graph.showAttrValues = 1
self.graph.useSplines = 0
self.graph.enabledLegend = 1
#load settings
self.loadSettings()
#GUI
self.tabs = OWGUI.tabWidget(self.controlArea)
self.GeneralTab = OWGUI.createTabPage(self.tabs, "Main")
self.SettingsTab = OWGUI.createTabPage(self.tabs, "Settings")
self.createShowHiddenLists(self.GeneralTab, callback=self.updateGraph)
self.connect(self.shownAttribsLB,
SIGNAL('itemDoubleClicked(QListWidgetItem*)'),
self.flipAttribute)
self.optimizationDlg = ParallelOptimization(
self, signalManager=self.signalManager)
self.optimizationDlgButton = OWGUI.button(
self.GeneralTab,
self,
"Optimization Dialog",
callback=self.optimizationDlg.reshow,
debuggingEnabled=0)
self.zoomSelectToolbar = OWToolbars.ZoomSelectToolbar(
self,
self.GeneralTab,
self.graph,
self.autoSendSelection,
buttons=(1, 2, 0, 7, 8))
self.connect(self.zoomSelectToolbar.buttonSendSelections,
SIGNAL("clicked()"), self.sendSelections)
#connect controls to appropriate functions
self.connect(self.graphButton, SIGNAL("clicked()"),
self.graph.saveToFile)
# ####################################
# SETTINGS functionality
box = OWGUI.widgetBox(self.SettingsTab, "Transparency")
OWGUI.hSlider(box,
self,
'graph.alphaValue',
label="Examples: ",
minValue=0,
maxValue=255,
step=10,
callback=self.updateGraph,
tooltip="Alpha value used for drawing example lines")
OWGUI.hSlider(
box,
self,
'graph.alphaValue2',
label="Rest: ",
minValue=0,
maxValue=255,
step=10,
callback=self.updateGraph,
tooltip="Alpha value used to draw statistics, example subsets, ..."
)
box = OWGUI.widgetBox(self.SettingsTab, "Jittering Options")
OWGUI.comboBox(box,
self,
"graph.jitterSize",
label='Jittering size (% of size): ',
orientation='horizontal',
callback=self.setJitteringSize,
items=self.jitterSizeNums,
sendSelectedValue=1,
valueType=float)
# visual settings
box = OWGUI.widgetBox(self.SettingsTab, "Visual Settings")
OWGUI.checkBox(box,
self,
'graph.showAttrValues',
'Show attribute values',
callback=self.updateGraph)
OWGUI.checkBox(box,
self,
'graph.useAntialiasing',
'Use antialiasing',
callback=self.updateGraph)
OWGUI.checkBox(box,
self,
'graph.useSplines',
'Show splines',
callback=self.updateGraph,
tooltip="Show lines using splines")
OWGUI.checkBox(box,
self,
'graph.enabledLegend',
'Show legend',
callback=self.updateGraph)
box = OWGUI.widgetBox(self.SettingsTab, "Axis Distance")
resizeColsBox = OWGUI.widgetBox(box, 0, "horizontal", 0)
OWGUI.label(resizeColsBox, self, "Increase/decrease distance: ")
OWGUI.toolButton(resizeColsBox,
self,
"+",
callback=self.increaseAxesDistance,
tooltip="Increase the distance between the axes",
width=30,
height=20)
OWGUI.toolButton(resizeColsBox,
self,
"-",
callback=self.decreaseAxesDistance,
tooltip="Decrease the distance between the axes",
width=30,
height=20)
OWGUI.rubber(resizeColsBox)
OWGUI.checkBox(
box,
self,
"graph.autoUpdateAxes",
"Auto scale X axis",
tooltip="Auto scale X axis to show all visualized attributes",
callback=self.updateGraph)
box = OWGUI.widgetBox(self.SettingsTab, "Statistical Information")
OWGUI.comboBox(
box,
self,
"graph.showStatistics",
label="Statistics: ",
orientation="horizontal",
labelWidth=90,
items=["No statistics", "Means, deviations", "Median, quartiles"],
callback=self.updateGraph,
sendSelectedValue=0,
valueType=int)
OWGUI.comboBox(
box,
self,
"middleLabels",
label="Middle labels: ",
orientation="horizontal",
labelWidth=90,
items=["No labels", "Correlations", "VizRank"],
callback=self.updateGraph,
tooltip=
"The information do you wish to view on top in the middle of coordinate axes",
sendSelectedValue=1,
valueType=str)
OWGUI.checkBox(
box,
self,
'graph.showDistributions',
'Show distributions',
callback=self.updateGraph,
tooltip=
"Show bars with distribution of class values (only for discrete attributes)"
)
box = OWGUI.widgetBox(self.SettingsTab,
"Colors",
orientation="horizontal")
OWGUI.button(
box,
self,
"Set colors",
self.setColors,
tooltip=
"Set the canvas background color and color palette for coloring continuous variables",
debuggingEnabled=0)
box = OWGUI.widgetBox(self.SettingsTab,
"Auto Send Selected Data When...")
OWGUI.checkBox(
box,
self,
'autoSendSelection',
'Adding/Removing selection areas',
callback=self.selectionChanged,
tooltip=
"Send selected data whenever a selection area is added or removed")
OWGUI.checkBox(
box,
self,
'graph.sendSelectionOnUpdate',
'Moving/Resizing selection areas',
tooltip=
"Send selected data when a user moves or resizes an existing selection area"
)
self.graph.autoSendSelectionCallback = self.selectionChanged
self.SettingsTab.layout().addStretch(100)
self.icons = self.createAttributeIconDict()
dlg = self.createColorDialog()
self.graph.contPalette = dlg.getContinuousPalette("contPalette")
self.graph.discPalette = dlg.getDiscretePalette("discPalette")
self.graph.setCanvasBackground(dlg.getColor("Canvas"))
apply([
self.zoomSelectToolbar.actionZooming,
self.zoomSelectToolbar.actionRectangleSelection,
self.zoomSelectToolbar.actionPolygonSelection
][self.toolbarSelection], [])
self.cbShowAllAttributes()
self.resize(900, 700)
def flipAttribute(self, item):
if self.graph.flipAttribute(str(item.text())):
self.updateGraph()
self.information(0)
else:
self.information(
0,
"Didn't flip the attribute. To flip a continuous attribute uncheck 'Global value scaling' checkbox."
)
def updateGraph(self, *args):
attrs = self.getShownAttributeList()
self.graph.updateData(attrs, self.buildMidLabels(attrs))
def increaseAxesDistance(self):
m = self.graph.axisScaleDiv(QwtPlot.xBottom).interval().minValue()
M = self.graph.axisScaleDiv(QwtPlot.xBottom).interval().maxValue()
if (M - m) == 0:
return # we have not yet updated the axes (self.graph.updateAxes())
self.graph.setAxisScale(QwtPlot.xBottom, m, M - (M - m) / 10., 1)
self.graph.replot()
def decreaseAxesDistance(self):
m = self.graph.axisScaleDiv(QwtPlot.xBottom).interval().minValue()
M = self.graph.axisScaleDiv(QwtPlot.xBottom).interval().maxValue()
if (M - m) == 0:
return # we have not yet updated the axes (self.graph.updateAxes())
self.graph.setAxisScale(
QwtPlot.xBottom, m,
min(len(self.graph.visualizedAttributes) - 1, M + (M - m) / 10.),
1)
self.graph.replot()
# build a list of strings that will be shown in the middle of the parallel axis
def buildMidLabels(self, attrs):
labels = []
if self.middleLabels == "No labels" or not self.graph.haveData:
return None
elif self.middleLabels == "Correlations":
for i in range(len(attrs) - 1):
if self.correlationDict.has_key((attrs[i], attrs[i + 1])):
corr = self.correlationDict[(attrs[i], attrs[i + 1])]
elif self.correlationDict.has_key((attrs[i + 1], attrs[i])):
corr = self.correlationDict[(attrs[i + 1], attrs[i])]
else:
try:
corr = orngVisFuncts.computeCorrelation(
self.graph.rawData, attrs[i], attrs[i + 1])
except:
corr = None
self.correlationDict[(attrs[i], attrs[i + 1])] = corr
if corr and (self.graph.attributeFlipInfo.get(attrs[i], 0)
!= self.graph.attributeFlipInfo.get(
attrs[i + 1], 0)):
corr = -corr
if corr:
labels.append("%2.3f" % (corr))
else:
labels.append("")
elif self.middleLabels == "VizRank":
for i in range(len(attrs) - 1):
val = self.optimizationDlg.getVizRankVal(
attrs[i], attrs[i + 1])
if val:
labels.append("%2.2f%%" % (val))
else:
labels.append("")
return labels
# ------------- SIGNALS --------------------------
# receive new data and update all fields
def setData(self, data):
if data and (len(data) == 0 or len(data.domain) == 0):
data = None
if self.data is not None and data is not None and self.data.checksum(
) == data.checksum():
return # check if the new data set is the same as the old one
self.closeContext()
sameDomain = self.data and data and data.domain.checksum(
) == self.data.domain.checksum(
) # preserve attribute choice if the domain is the same
self.projections = None
self.correlationDict = {}
self.data = data
self.optimizationDlg.clearResults()
if not sameDomain:
self.setShownAttributeList(self.attributeSelectionList)
self.openContext("", self.data)
self.resetAttrManipulation()
def setSubsetData(self, subData):
self.subsetData = subData
# attribute selection signal - list of attributes to show
def setShownAttributes(self, attributeSelectionList):
self.attributeSelectionList = attributeSelectionList
# this is called by OWBaseWidget after setData and setSubsetData are called. this way the graph is updated only once
def handleNewSignals(self):
self.graph.setData(self.data, self.subsetData)
if self.attributeSelectionList and 0 not in [
self.graph.attributeNameIndex.has_key(attr)
for attr in self.attributeSelectionList
]:
self.setShownAttributeList(self.attributeSelectionList)
else:
self.setShownAttributeList()
self.attributeSelectionList = None
self.updateGraph()
self.sendSelections()
def sendShownAttributes(self, attrList=None):
if attrList is None:
attrList = self.getShownAttributeList()
self.send("Features", attrList)
def selectionChanged(self):
self.zoomSelectToolbar.buttonSendSelections.setEnabled(
not self.autoSendSelection)
if self.autoSendSelection:
self.sendSelections()
# send signals with selected and unselected examples as two datasets
def sendSelections(self):
(selected, unselected) = self.graph.getSelectionsAsExampleTables()
self.send("Selected Data", selected)
self.send("Other Data", unselected)
# jittering options
def setJitteringSize(self):
self.graph.rescaleData()
self.updateGraph()
def setColors(self):
dlg = self.createColorDialog()
if dlg.exec_():
self.colorSettings = dlg.getColorSchemas()
self.selectedSchemaIndex = dlg.selectedSchemaIndex
self.graph.contPalette = dlg.getContinuousPalette("contPalette")
self.graph.discPalette = dlg.getDiscretePalette("discPalette")
self.graph.setCanvasBackground(dlg.getColor("Canvas"))
self.updateGraph()
def createColorDialog(self):
c = OWColorPalette.ColorPaletteDlg(self, "Color Palette")
c.createDiscretePalette("discPalette", "Discrete Palette")
c.createContinuousPalette("contPalette", "Continuous Palette")
box = c.createBox("otherColors", "Other Colors")
c.createColorButton(box, "Canvas", "Canvas color", QColor(Qt.white))
c.setColorSchemas(self.colorSettings, self.selectedSchemaIndex)
return c
def saveSettings(self):
OWWidget.saveSettings(self)
self.optimizationDlg.saveSettings()
def closeEvent(self, ce):
self.optimizationDlg.hide()
OWWidget.closeEvent(self, ce)
def sendReport(self):
self.reportImage(self.graph.saveToFileDirect, QSize(500, 500))
class OWParallelCoordinates(OWVisWidget):
settingsList = ["graph.jitterSize", "graph.showDistributions",
"graph.showAttrValues", "graph.useAntialiasing",
"graph.useSplines", "graph.alphaValue",
"graph.alphaValue2", "graph.enabledLegend",
"graph.showStatistics", "autoSendSelection",
"toolbarSelection", "colorSettings",
"selectedSchemaIndex", "showAllAttributes"]
jitterSizeNums = [0, 2, 5, 10, 15, 20, 30]
contextHandlers = {
"": DomainContextHandler("", [
ContextField("shownAttributes", DomainContextHandler.RequiredList,
selected="selectedShown", reservoir="hiddenAttributes")]
)
}
def __init__(self, parent=None, signalManager=None):
OWWidget.__init__(self, parent, signalManager, "Parallel Coordinates", True)
#add a graph widget
self.graph = OWParallelGraph(self, self.mainArea)
self.mainArea.layout().addWidget(self.graph)
self.showAllAttributes = 0
self.inputs = [("Data", ExampleTable, self.setData, Default),
("Data Subset", ExampleTable, self.setSubsetData),
("Features", AttributeList, self.setShownAttributes)]
self.outputs = [("Selected Data", ExampleTable),
("Other Data", ExampleTable),
("Features", AttributeList)]
#set default settings
self.data = None
self.subsetData = None
self.autoSendSelection = 1
self.attrDiscOrder = "Unordered"
self.attrContOrder = "Unordered"
self.projections = None
self.correlationDict = {}
self.middleLabels = "Correlations"
self.attributeSelectionList = None
self.toolbarSelection = 0
self.colorSettings = None
self.selectedSchemaIndex = 0
self.graph.jitterSize = 10
self.graph.showDistributions = 1
self.graph.showStatistics = 0
self.graph.showAttrValues = 1
self.graph.useSplines = 0
self.graph.enabledLegend = 1
#load settings
self.loadSettings()
#GUI
self.tabs = OWGUI.tabWidget(self.controlArea)
self.GeneralTab = OWGUI.createTabPage(self.tabs, "Main")
self.SettingsTab = OWGUI.createTabPage(self.tabs, "Settings")
self.createShowHiddenLists(self.GeneralTab, callback=self.updateGraph)
self.connect(self.shownAttribsLB, SIGNAL('itemDoubleClicked(QListWidgetItem*)'), self.flipAttribute)
self.optimizationDlg = ParallelOptimization(self, signalManager=self.signalManager)
self.optimizationDlgButton = OWGUI.button(self.GeneralTab, self, "Optimization Dialog",
callback=self.optimizationDlg.reshow, debuggingEnabled=0)
self.zoomSelectToolbar = OWToolbars.ZoomSelectToolbar(self, self.GeneralTab, self.graph, self.autoSendSelection,
buttons=(1, 2, 0, 7, 8))
self.connect(self.zoomSelectToolbar.buttonSendSelections, SIGNAL("clicked()"), self.sendSelections)
#connect controls to appropriate functions
self.connect(self.graphButton, SIGNAL("clicked()"), self.graph.saveToFile)
# ####################################
# SETTINGS functionality
box = OWGUI.widgetBox(self.SettingsTab, "Transparency")
OWGUI.hSlider(box, self, 'graph.alphaValue', label="Examples: ", minValue=0, maxValue=255, step=10,
callback=self.updateGraph, tooltip="Alpha value used for drawing example lines")
OWGUI.hSlider(box, self, 'graph.alphaValue2', label="Rest: ", minValue=0, maxValue=255, step=10,
callback=self.updateGraph, tooltip="Alpha value used to draw statistics, example subsets, ...")
box = OWGUI.widgetBox(self.SettingsTab, "Jittering Options")
OWGUI.comboBox(box, self, "graph.jitterSize", label='Jittering size (% of size): ', orientation='horizontal',
callback=self.setJitteringSize, items=self.jitterSizeNums, sendSelectedValue=1, valueType=float)
# visual settings
box = OWGUI.widgetBox(self.SettingsTab, "Visual Settings")
OWGUI.checkBox(box, self, 'graph.showAttrValues', 'Show attribute values', callback=self.updateGraph)
OWGUI.checkBox(box, self, 'graph.useAntialiasing', 'Use antialiasing', callback=self.updateGraph)
OWGUI.checkBox(box, self, 'graph.useSplines', 'Show splines', callback=self.updateGraph,
tooltip="Show lines using splines")
OWGUI.checkBox(box, self, 'graph.enabledLegend', 'Show legend', callback=self.updateGraph)
box = OWGUI.widgetBox(self.SettingsTab, "Axis Distance")
resizeColsBox = OWGUI.widgetBox(box, 0, "horizontal", 0)
OWGUI.label(resizeColsBox, self, "Increase/decrease distance: ")
OWGUI.toolButton(resizeColsBox, self, "+", callback=self.increaseAxesDistance,
tooltip="Increase the distance between the axes", width=30, height=20)
OWGUI.toolButton(resizeColsBox, self, "-", callback=self.decreaseAxesDistance,
tooltip="Decrease the distance between the axes", width=30, height=20)
OWGUI.rubber(resizeColsBox)
OWGUI.checkBox(box, self, "graph.autoUpdateAxes", "Auto scale X axis",
tooltip="Auto scale X axis to show all visualized attributes", callback=self.updateGraph)
box = OWGUI.widgetBox(self.SettingsTab, "Statistical Information")
OWGUI.comboBox(box, self, "graph.showStatistics", label="Statistics: ", orientation="horizontal", labelWidth=90,
items=["No statistics", "Means, deviations", "Median, quartiles"], callback=self.updateGraph,
sendSelectedValue=0, valueType=int)
OWGUI.comboBox(box, self, "middleLabels", label="Middle labels: ", orientation="horizontal", labelWidth=90,
items=["No labels", "Correlations", "VizRank"], callback=self.updateGraph,
tooltip="The information do you wish to view on top in the middle of coordinate axes",
sendSelectedValue=1, valueType=str)
OWGUI.checkBox(box, self, 'graph.showDistributions', 'Show distributions', callback=self.updateGraph,
tooltip="Show bars with distribution of class values (only for discrete attributes)")
box = OWGUI.widgetBox(self.SettingsTab, "Colors", orientation="horizontal")
OWGUI.button(box, self, "Set colors", self.setColors,
tooltip="Set the canvas background color and color palette for coloring continuous variables",
debuggingEnabled=0)
box = OWGUI.widgetBox(self.SettingsTab, "Auto Send Selected Data When...")
OWGUI.checkBox(box, self, 'autoSendSelection', 'Adding/Removing selection areas',
callback=self.selectionChanged,
tooltip="Send selected data whenever a selection area is added or removed")
OWGUI.checkBox(box, self, 'graph.sendSelectionOnUpdate', 'Moving/Resizing selection areas',
tooltip="Send selected data when a user moves or resizes an existing selection area")
self.graph.autoSendSelectionCallback = self.selectionChanged
self.SettingsTab.layout().addStretch(100)
self.icons = self.createAttributeIconDict()
dlg = self.createColorDialog()
self.graph.contPalette = dlg.getContinuousPalette("contPalette")
self.graph.discPalette = dlg.getDiscretePalette("discPalette")
self.graph.setCanvasBackground(dlg.getColor("Canvas"))
apply([self.zoomSelectToolbar.actionZooming, self.zoomSelectToolbar.actionRectangleSelection,
self.zoomSelectToolbar.actionPolygonSelection][self.toolbarSelection], [])
self.cbShowAllAttributes()
self.resize(900, 700)
def flipAttribute(self, item):
if self.graph.flipAttribute(str(item.text())):
self.updateGraph()
self.information(0)
else:
self.information(0,
"Didn't flip the attribute. To flip a continuous attribute uncheck 'Global value scaling' checkbox.")
def updateGraph(self, *args):
attrs = self.getShownAttributeList()
self.graph.updateData(attrs, self.buildMidLabels(attrs))
def increaseAxesDistance(self):
m = self.graph.axisScaleDiv(QwtPlot.xBottom).interval().minValue()
M = self.graph.axisScaleDiv(QwtPlot.xBottom).interval().maxValue()
if (M - m) == 0:
return # we have not yet updated the axes (self.graph.updateAxes())
self.graph.setAxisScale(QwtPlot.xBottom, m, M - (M - m) / 10., 1)
self.graph.replot()
def decreaseAxesDistance(self):
m = self.graph.axisScaleDiv(QwtPlot.xBottom).interval().minValue()
M = self.graph.axisScaleDiv(QwtPlot.xBottom).interval().maxValue()
if (M - m) == 0:
return # we have not yet updated the axes (self.graph.updateAxes())
self.graph.setAxisScale(QwtPlot.xBottom, m, min(len(self.graph.visualizedAttributes) - 1, M + (M - m) / 10.), 1)
self.graph.replot()
# build a list of strings that will be shown in the middle of the parallel axis
def buildMidLabels(self, attrs):
labels = []
if self.middleLabels == "No labels" or not self.graph.haveData:
return None
elif self.middleLabels == "Correlations":
for i in range(len(attrs) - 1):
if self.correlationDict.has_key((attrs[i], attrs[i + 1])):
corr = self.correlationDict[(attrs[i], attrs[i + 1])]
elif self.correlationDict.has_key((attrs[i + 1], attrs[i])):
corr = self.correlationDict[(attrs[i + 1], attrs[i])]
else:
try:
corr = orngVisFuncts.computeCorrelation(self.graph.rawData, attrs[i], attrs[i + 1])
except:
corr = None
self.correlationDict[(attrs[i], attrs[i + 1])] = corr
if corr and (
self.graph.attributeFlipInfo.get(attrs[i], 0) != self.graph.attributeFlipInfo.get(attrs[i + 1],
0)): corr = -corr
if corr:
labels.append("%2.3f" % (corr))
else:
labels.append("")
elif self.middleLabels == "VizRank":
for i in range(len(attrs) - 1):
val = self.optimizationDlg.getVizRankVal(attrs[i], attrs[i + 1])
if val:
labels.append("%2.2f%%" % (val))
else:
labels.append("")
return labels
# ------------- SIGNALS --------------------------
# receive new data and update all fields
def setData(self, data):
if data and (len(data) == 0 or len(data.domain) == 0):
data = None
if self.data is not None and data is not None and self.data.checksum() == data.checksum():
return # check if the new data set is the same as the old one
self.closeContext()
sameDomain = self.data and data and data.domain.checksum() == self.data.domain.checksum() # preserve attribute choice if the domain is the same
self.projections = None
self.correlationDict = {}
self.data = data
self.optimizationDlg.clearResults()
if not sameDomain:
self.setShownAttributeList(self.attributeSelectionList)
self.openContext("", self.data)
self.resetAttrManipulation()
def setSubsetData(self, subData):
self.subsetData = subData
# attribute selection signal - list of attributes to show
def setShownAttributes(self, attributeSelectionList):
self.attributeSelectionList = attributeSelectionList
# this is called by OWBaseWidget after setData and setSubsetData are called. this way the graph is updated only once
def handleNewSignals(self):
self.graph.setData(self.data, self.subsetData)
if self.attributeSelectionList and 0 not in [self.graph.attributeNameIndex.has_key(attr) for attr in
self.attributeSelectionList]:
self.setShownAttributeList(self.attributeSelectionList)
else:
self.setShownAttributeList()
self.attributeSelectionList = None
self.updateGraph()
self.sendSelections()
def sendShownAttributes(self, attrList=None):
if attrList is None:
attrList = self.getShownAttributeList()
self.send("Features", attrList)
def selectionChanged(self):
self.zoomSelectToolbar.buttonSendSelections.setEnabled(not self.autoSendSelection)
if self.autoSendSelection:
self.sendSelections()
# send signals with selected and unselected examples as two datasets
def sendSelections(self):
(selected, unselected) = self.graph.getSelectionsAsExampleTables()
self.send("Selected Data", selected)
self.send("Other Data", unselected)
# jittering options
def setJitteringSize(self):
self.graph.rescaleData()
self.updateGraph()
def setColors(self):
dlg = self.createColorDialog()
if dlg.exec_():
self.colorSettings = dlg.getColorSchemas()
self.selectedSchemaIndex = dlg.selectedSchemaIndex
self.graph.contPalette = dlg.getContinuousPalette("contPalette")
self.graph.discPalette = dlg.getDiscretePalette("discPalette")
self.graph.setCanvasBackground(dlg.getColor("Canvas"))
self.updateGraph()
def createColorDialog(self):
c = OWColorPalette.ColorPaletteDlg(self, "Color Palette")
c.createDiscretePalette("discPalette", "Discrete Palette")
c.createContinuousPalette("contPalette", "Continuous Palette")
box = c.createBox("otherColors", "Other Colors")
c.createColorButton(box, "Canvas", "Canvas color", QColor(Qt.white))
c.setColorSchemas(self.colorSettings, self.selectedSchemaIndex)
return c
def saveSettings(self):
OWWidget.saveSettings(self)
self.optimizationDlg.saveSettings()
def closeEvent(self, ce):
self.optimizationDlg.hide()
OWWidget.closeEvent(self, ce)
def sendReport(self):
self.reportImage(self.graph.saveToFileDirect, QSize(500, 500))
