GitHub user mengxr opened a pull request:
https://github.com/apache/spark/pull/3220
[SPARK-4355][MLLIB] fix OnlineSummarizer.merge when other.mean is zero
See inline comment about the bug. I also did some code clean-up. @dbtsai I
moved `update` to a private method of `MultivariateOnlineSummarizer`. I don't
think it will cause performance regression, but it would be great if you have
some time to test.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mengxr/spark SPARK-4355
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/3220.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 #3220
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commit 5ef601f320a062138cbd011778bd7006d71f7a36
Author: Xiangrui Meng <[email protected]>
Date: 2014-11-12T06:17:59Z
fix OnlineSummarizer.merge when other.mean is zero and some code clean-up
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