def test():
"""Standalone test"""
import sys
from PyQt4.QtGui import QApplication
# from Orange.classification.tree import TreeLearner
from Orange.regression.tree import TreeLearner
a = QApplication(sys.argv)
ow = OWTreeGraph()
# data = Table("iris")
data = Table("housing")
clf = TreeLearner()(data)
clf.instances = data
ow.ctree(clf)
ow.show()
ow.raise_()
a.exec_()
ow.saveSettings()
