GitHub user pnpritchard opened a pull request:
https://github.com/apache/spark/pull/8940
[SPARK-10875][MLLib] Computed covariance matrix should be symmetric
Compute upper triangular values of the covariance matrix, then copy to
lower triangular values.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/pnpritchard/spark SPARK-10875
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/8940.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 #8940
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commit 9a5401ceaa42ed8e29554856ab602e1434c4036b
Author: Nick Pritchard <[email protected]>
Date: 2015-09-29T20:45:20Z
SPARK-10875 force covariance matrix to be symmetric
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