GitHub user edenovit opened a pull request:
https://github.com/apache/spark/pull/4475
https://issues.apache.org/jira/browse/SPARK-5688
When choosing the subset of categories for categorical variables, this was
not done randomly.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/edenovit/spark DTCategoricalSplit
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/4475.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #4475
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commit 27eeaf7579428a8de180dbe08fb30d1e30228b33
Author: Eric Denovitzer <[email protected]>
Date: 2015-02-09T15:39:07Z
NumSplits for categorical value cannot be larger than possible
number of subsets of categories for that variable.
When choosing a subset of subsets, make this random.
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