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https://issues.apache.org/jira/browse/MADLIB-1128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16466640#comment-16466640
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ASF GitHub Bot commented on MADLIB-1128:
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GitHub user orhankislal opened a pull request:
https://github.com/apache/madlib/pull/269
Statistics: Add grouping support for correlation functions
JIRA: MADLIB-1128
This commit adds grouping support to correlation and covariance
functions in MADlib stats. Changes include relevant queries to do the
same.
This commit also has refactor changes to a helper function in
utilities.py_in.
Co-authored-by: Jingyi Mei <[email protected]>
Co-authored-by: Nikhil Kak <[email protected]>
Co-authored-by: Nandish Jayaram <[email protected]>
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/madlib/madlib feature/correlation-grouping
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/madlib/pull/269.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 #269
----
commit e9dd9ae88d9d2acaea68c093396f6d600148ede4
Author: Orhan Kislal <okislal@...>
Date: 2018-05-07T23:53:51Z
Statistics: Add grouping support for correlation functions
JIRA: MADLIB-1128
This commit adds grouping support to correlation and covariance
functions in MADlib stats. Changes include relevant queries to do the
same.
This commit also has refactor changes to a helper function in
utilities.py_in.
Co-authored-by: Jingyi Mei <[email protected]>
Co-authored-by: Nikhil Kak <[email protected]>
Co-authored-by: Nandish Jayaram <[email protected]>
----
> Add GROUP BY to correlation functions
> -------------------------------------
>
> Key: MADLIB-1128
> URL: https://issues.apache.org/jira/browse/MADLIB-1128
> Project: Apache MADlib
> Issue Type: Improvement
> Components: Module: Descriptive Statistics
> Reporter: Frank McQuillan
> Assignee: Nandish Jayaram
> Priority: Minor
> Fix For: v1.15
>
>
> http://madlib.incubator.apache.org/docs/latest/group__grp__correlation.html
> add:
> grouping_cols (optional)
> TEXT, default: null. A comma-separated list of columns on which to group
> results. If NULL, correlations/covariance is produced on the complete table.
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