Github user codedeft commented on the pull request: https://github.com/apache/spark/pull/2435#issuecomment-55971575 @jkbradley I don't quite get what different columns in result numbers mean. Do you mean that you are still training exactly the same single tree (to depth 6) on different number of rows/features but with added features? Are you still sampling 100% of features per node even with feature subsets in these tests?
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