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https://issues.apache.org/jira/browse/SOLR-11430?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joel Bernstein resolved SOLR-11430.
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Resolution: Resolved
> Add lerp and akima Stream Evaluators to support linear and akima spline
> interpolation
> -------------------------------------------------------------------------------------
>
> Key: SOLR-11430
> URL: https://issues.apache.org/jira/browse/SOLR-11430
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
> Assignee: Joel Bernstein
> Priority: Major
> Fix For: 7.3
>
> Attachments: SOLR-11430.patch
>
>
> The lerp Stream Evaluator performs linear interpolation:
> {code}
> interp = lerp(xvec, yvec)
> {code}
> The akima Stream Evaluator performs Akima spline interpolation:
> {code}
> interp = akima(xvec, yvec)
> {code}
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