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| author | Sean Owen <sowen@cloudera.com> | 2016-08-27 08:48:56 +0100 |
|---|---|---|
| committer | Sean Owen <sowen@cloudera.com> | 2016-08-27 08:48:56 +0100 |
| commit | e07baf14120bc94b783649dabf5fffea58bff0de (patch) | |
| tree | 557979925874c18034e793057a9706c3ee6924fa /sql | |
| parent | 9fbced5b25c2f24d50c50516b4b7737f7e3eaf86 (diff) | |
| download | spark-e07baf14120bc94b783649dabf5fffea58bff0de.tar.gz spark-e07baf14120bc94b783649dabf5fffea58bff0de.tar.bz2 spark-e07baf14120bc94b783649dabf5fffea58bff0de.zip | |
[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.
Author: Sean Owen <sowen@cloudera.com>
Closes #14663 from srowen/SPARK-17001.
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