Visualise decision tree

while running the Image(graph.create_png()) command, InvocationException: GraphViz’s executables not found is shown.
i could not resolve this issue. Can you tell me what to do.

After “conda install graphviz” you have to add to the PATH: C:\Users\username\Anaconda3\Library\bin\graphviz (wherever you have installed)

To modify PATH goto Control Panel > System and Security > System > Advanced System Settings > Environment Variables > Path > Edit > New