GitHub user oliverpierson opened a pull request:
https://github.com/apache/spark/pull/11402
[SPARK-13444] [MLlib] QuantileDiscretizer chooses bad splits on large
DataFrames (1.6 patch)
## What changes were proposed in this pull request?
Fixes a bug in QuantileDiscretizer that results in the wrong number of bins
for datasets larger than 10K rows and adds regression test. This PR corrects
an issue with PR #11319.
## How was this patch tested?
Manual tests and test-only QuantileDiscretizerSuite
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/oliverpierson/spark SPARK-13444
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11402.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 #11402
----
commit 61bc5ee070332fb89a5be284ffbb872d1b7cc2c3
Author: Oliver Pierson <[email protected]>
Date: 2016-02-26T21:07:18Z
added test to QuantileDiscretizerSuite
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