Here’s a simple solution using IPython: from IPython.display import Image, display def view_pydot(pdot): plt = Image(pdot.create_png()) display(plt) Example usage: import networkx as nx to_pdot = nx.drawing.nx_pydot.to_pydot pdot = to_pdot(nx.complete_graph(5)) view_pydot(pdot)
I followed the instructions given in this blog. Then I installed graphviz from here and added C:\Program Files (x86)\Graphviz2.38\bin to PATH. Next I did: conda install pydot-ng And finally in my notebook I added the two lines below. import os os.environ[“PATH”] += os.pathsep + ‘C:/Program Files (x86)/Graphviz2.38/bin/’
Assuming your Random Forest model is already fitted, first you should first import the export_graphviz function: from sklearn.tree import export_graphviz In your for cycle you could do the following to generate the dot file export_graphviz(tree_in_forest, feature_names=X.columns, filled=True, rounded=True) The next line generates a png file os.system(‘dot -Tpng tree.dot -o tree.png’)
I think you are using newer version of python. Please try with pydotplus. import pydotplus … graph = pydotplus.graph_from_dot_data(dot_data.getvalue()) graph.write_pdf(“iris.pdf”) This should do it.
I also had this problem on Ubuntu 16.04. Fixed by running sudo apt-get install graphviz in addition to the pip install I had already performed.
The following commands solved the problem for me pip install pydot pip install pydotplus sudo apt-get install graphviz
The problem is that the path to GraphViz was not found by the pydot module as shown in the traceback: ‘GraphViz\’s executables not found’ I solved this problem on my windows 7 machine by adding the GraphViz bin directory to my computer’s PATH. Then restarting my python IDE to use the updated path. Install GraphViz … Read more
Answer for pydot >= 1.1: The incompatibility of (upstream) pydot has been fixed by 6dff94b3f1, and thus pydot >= 1.1 will be compatible with pyparsing >= 1.5.7. Answer applicable to pydot <= 1.0.28: For anyone else who comes across this, it is due to the changes in pyparsing from 1.x to the 2.x release. To … Read more