def updateRulesModel(self):
if self.classifier is not None:
table = []
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()
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)
