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https://issues.apache.org/jira/browse/SOLR-11338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16158962#comment-16158962
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ASF subversion and git services commented on SOLR-11338:
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Commit 36578f1a19f14e256a90637eec77b80d0e827c66 in lucene-solr's branch
refs/heads/branch_7x from [~joel.bernstein]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=36578f1 ]
SOLR-11338: Add Kendall's Tau-b rank and Spearmans rank correlation Stream
Evaluators
> Add Kendall's Tau-b rank and Spearmans rank correlation Stream Evaluators
> -------------------------------------------------------------------------
>
> Key: SOLR-11338
> URL: https://issues.apache.org/jira/browse/SOLR-11338
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
> Assignee: Joel Bernstein
> Fix For: master (8.0), 7.1
>
> Attachments: SOLR-11338.patch
>
>
> Streaming Expressions already supports Pearson's product moment correlation.
> This ticket adds *Kendall's Tau-b rank correlation* and *Spearmans rank
> correlation* Stream Evaluators.
> Functions are backed by Apache Commons Math
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