[jira] [Resolved] (SOLR-10638) Add normalize Stream Evaluator

["Joel Bernstein (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-10638?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joel Bernstein resolved SOLR-10638.
-----------------------------------
       Resolution: Resolved
    Fix Version/s: master (7.0)
                   6.6

> 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
>             Fix For: 6.6, master (7.0)
>
>
> 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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