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From "Joel Bernstein (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SOLR-10684) Add finddelay Stream Evaluator
Date Wed, 24 May 2017 17:12:04 GMT

     [ https://issues.apache.org/jira/browse/SOLR-10684?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Joel Bernstein reassigned SOLR-10684:
-------------------------------------

    Assignee: Joel Bernstein

> Add finddelay Stream Evaluator
> ------------------------------
>
>                 Key: SOLR-10684
>                 URL: https://issues.apache.org/jira/browse/SOLR-10684
>             Project: Solr
>          Issue Type: New Feature
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Joel Bernstein
>            Assignee: Joel Bernstein
>         Attachments: SOLR-10684.patch, SOLR-10684.patch
>
>
> The *finddelay* Stream Evaluator finds the delay/lag between two time series. Under the
covers the convolution function will perform the math to find the delay.
> Syntax:
> {code}
> delay = finddelay(colA, colB)
> {code}
> The convolution implementation is provided by Apache Commons Math.



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