GitHub user srowen opened a pull request:
https://github.com/apache/spark/pull/14663
[SPARK-17001] [ML] Enable standardScaler to standardize sparse vectors when
withMean=True
## What changes were proposed in this pull request?
Allow centering / mean scaling of sparse vectors in StandardScaler, if
requested. This is for compatibility with `VectorAssembler` in common usages.
## How was this patch tested?
Jenkins tests, including new caes to reflect the new behavior.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/srowen/spark SPARK-17001
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14663.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 #14663
----
commit 496a8df562ea755560cdae78a52d079b5cc5ebe8
Author: Sean Owen <[email protected]>
Date: 2016-08-16T10:36:00Z
Allow centering / mean scaling of sparse vectors in StandardScaler, if
requested
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