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https://issues.apache.org/jira/browse/SOLR-12828?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16637126#comment-16637126
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Joel Bernstein commented on SOLR-12828:
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Added tests
> Add oscillate Stream Evaluator to support sine wave analysis
> ------------------------------------------------------------
>
> Key: SOLR-12828
> URL: https://issues.apache.org/jira/browse/SOLR-12828
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
> Assignee: Joel Bernstein
> Priority: Major
> Attachments: SOLR-12828.patch, SOLR-12828.patch
>
>
> The *oscillate* function predicts control points of a sine wave given
> *amplitude*, *angular frequency* and *phase* parameters.
> As part of this ticket the work on the *harmonicFit* Stream Evaluator will
> also be finished to support sine wave curve fitting and extrapolation.
> Implementations for *oscillate* and *harmonicFit* provided by *Apache Commons
> Math*
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