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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-10626) Add covariance Stream Evaluator
Date Mon, 08 May 2017 00:54:04 GMT

    [ https://issues.apache.org/jira/browse/SOLR-10626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16000150#comment-16000150
] 

ASF subversion and git services commented on SOLR-10626:
--------------------------------------------------------

Commit c6524c3d66b94947ec458582aa64585662d1497f in lucene-solr's branch refs/heads/master
from [~joel.bernstein]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=c6524c3 ]

SOLR-10626: Add covariance Stream Evaluator


> 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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