GitHub user srowen opened a pull request:
https://github.com/apache/spark/pull/7800
[SPARK-9077] [MLLIB] Improve error message for decision trees when
numExamples < maxCategoriesPerFeature
Improve error message when number of examples is less than arity of
high-arity categorical feature
CC @jkbradley is this about what you had in mind? I know it's a starter,
but was on my list to close out in the short term.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/srowen/spark SPARK-9077
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/7800.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 #7800
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commit b8f6cdb044a19c0eb32260241122efeb48498810
Author: Sean Owen <[email protected]>
Date: 2015-07-30T16:54:04Z
Improve error message when number of examples is less than arity of
high-arity categorical feature
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