I'm unable to visualize or write the Decision tree. How can I go about it?
Python version 3.5, Anaconda 3, I have even set the environment variables
from sklearn import tree
model = tree.DecisionTreeClassifier(criterion='gini')
model=tree.DecisionTreeClassifier()
model.fit(trainData,trainLabel)
model.score(trainData,trainLabel)
predicted= model.predict(testData)
from sklearn.externals.six import StringIO
import pydot
import pydotplus
dot_data = StringIO()
tree.export_graphviz(model, out_file=dot_data)
graph = pydotplus.graph_from_dot_data(dot_data.getvalue())
print(graph)
graph.write_pdf("C:\\Users\\anagha\\Desktop\\SynehackData\\DATA\\DATA\\graph.pdf")
error :
InvocationException: GraphViz's executables not found