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Posted to dev@lucene.apache.org by "Joel Bernstein (JIRA)" <ji...@apache.org> on 2016/04/10 00:20:25 UTC

[jira] [Created] (SOLR-8964) Add CorrelateStream to compute Pearson's correlation coefficient for two streams

Joel Bernstein created SOLR-8964:
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             Summary: Add CorrelateStream to compute Pearson's correlation coefficient for two streams
                 Key: SOLR-8964
                 URL: https://issues.apache.org/jira/browse/SOLR-8964
             Project: Solr
          Issue Type: New Feature
            Reporter: Joel Bernstein


The CorrelateStream will compute the Pearsons correlation coefficient for two streams. 

Sample syntax below will calculate the Pearsons correlation for two time series streams. See SOLR-8963 for the *time* function:

{code}
correlate(rollup(time(search()),
               rollup(time(search()))
{code}



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