GitHub user psuszyns opened a pull request:
https://github.com/apache/spark/pull/12419
[SPARK-14661] [MLlib] trim PCAModel by required explained variance
## What changes were proposed in this pull request?
New method in PCAModel for auto-trimming the model to minimal number of
features calculated from required variance retained by those features
## How was this patch tested?
unit tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/psuszyns/spark PCA_trimmed_by_variance
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12419.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 #12419
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commit ac1b9fe9c920171b6baf1a3bb12a4c7ea7d79ec1
Author: Piotr SuszyÅski <[email protected]>
Date: 2016-04-15T11:55:41Z
SPARK-14661: PCA trimmed by variance
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