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https://issues.apache.org/jira/browse/SOLR-10626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16000154#comment-16000154
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ASF subversion and git services commented on SOLR-10626:
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Commit 1f7974acc386928bb8c076fec891ebb86ba6b5b3 in lucene-solr's branch
refs/heads/branch_6x from [~joel.bernstein]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=1f7974a ]
SOLR-10626: Update CHANGES.txt
> Add covariance Stream Evaluator
> -------------------------------
>
> Key: SOLR-10626
> URL: https://issues.apache.org/jira/browse/SOLR-10626
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
> Attachments: SOLR-10626.patch
>
>
> The covariance Stream Evaluator calculates the covariance of two columns of
> numbers.
> Syntax:
> {code}
> c=cov(cola,colb)
> {code}
> The implementation is provided by Apache Commons Math
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