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  1. Solr
  2. SOLR-13391

Add variance and standard deviation stream evaluators

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      It seems variance and standard deviation stream evaluators are not supported by any of the solr version. For example, 

                    let(echo="m,v,sd", arr=array(1,3,3), m=mean(a), v=var(a), sd=stddev(a))

      So far, only the mean function is implemented. I think it is useful to have var and sttdev functions separately as a stream evaluator. 

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              • Assignee:
                jbernste Joel Bernstein
                Reporter:
                snazerke Nazerke Seidan
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