[jira] [Commented] (SOLR-11808) Add sumSq Stream Evaluator

["ASF subversion and git services (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-11808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16307278#comment-16307278 ] 

ASF subversion and git services commented on SOLR-11808:
--------------------------------------------------------

Commit 692e5243e9ae550de74fe75d9c2db5af5efda580 in lucene-solr's branch refs/heads/master from [~joel.bernstein]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=692e524 ]

SOLR-11808: Add sumSq Stream Evaluator


> Add sumSq Stream Evaluator  
> ----------------------------
>
>                 Key: SOLR-11808
>                 URL: https://issues.apache.org/jira/browse/SOLR-11808
>             Project: Solr
>          Issue Type: New Feature
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Joel Bernstein
>            Assignee: Joel Bernstein
>             Fix For: 7.3
>
>         Attachments: SOLR-11808.patch
>
>
> This ticket adds the *sumSq* function to Streaming Expression statistical function library. The sumSq function sums the squares of all the values in an array. This is often used when evaluating the residuals of a regression model.
> Implementation provided by Apache Commons Math.



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