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https://issues.apache.org/jira/browse/SOLR-10638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16001937#comment-16001937
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ASF subversion and git services commented on SOLR-10638:
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Commit 219442df94dfc6d6c2c7d6b8c1287487a0df9a5d 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=219442d ]
SOLR-10638: Update CHANGES.txt
> Add normalize Stream Evaluator
> ------------------------------
>
> Key: SOLR-10638
> URL: https://issues.apache.org/jira/browse/SOLR-10638
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
>
> This ticket will add the *normalize* Stream Evaluator which will normalize a
> vector of numbers so that the mean of the vector is 0 and the standard
> deviation is 1.
> Syntax:
> {code}
> a = normalize(colA)
> {code}
> Implementation is provided by Apache Commons Math
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