How can decision tree model in Spark (pyspark) be visualized?

Question

I am trying to visualize decision tree structure in pyspark. But all the tools are for data. I could not find any for visualizing tree structure. Or is there a way I can visualize using the rules from toDebugString?

Answer 1

I have tried to do the following in order to create a visualization :

1. Parse Spark Decision Tree output to a JSON format.
2. Use the JSON file as an input to a D3.js visualization.

For more code you can refer to my prototype at GitHub here.