Joel Bernstein created SOLR-10582:
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Summary: Add Correlation Evaluator
Key: SOLR-10582
URL: https://issues.apache.org/jira/browse/SOLR-10582
Project: Solr
Issue Type: New Feature
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Joel Bernstein
The Correlation Evaluator computes the Pearson's product-moment correlation of
two columns of data.
Syntax:
{code}
let(a=expr, b=expr, c=col(a, fieldName), d=col(b, fieldName),
tuple(corr=corr(c,d)))
{code}
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