GitHub user felixcheung opened a pull request:
https://github.com/apache/spark/pull/9489
[SPARK-11468][SPARKR] add stddev/variance agg functions for Column
Checked names, none of them should conflict with anything in base
@shivaram @davies @rxin
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/felixcheung/spark rstddev
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9489.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 #9489
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commit 680b4759e04c7d371fc555e220730e0a4da251f5
Author: felixcheung <[email protected]>
Date: 2015-11-05T02:37:04Z
Add stddev and friends
commit f63608e3d36bae0544281a94c732760bfebfcc6d
Author: felixcheung <[email protected]>
Date: 2015-11-05T05:05:57Z
add aggFunction by name and on Column
commit e0fda371d3691a21672a94e9e0b383890cc745a6
Author: felixcheung <[email protected]>
Date: 2015-11-05T08:27:15Z
Add tests, checked supported functions for GroupedData
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