Joel Bernstein created SOLR-11338:
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Summary: Add Kendall's Kendall's Tau-b rank and Spearmans rank
correlation Stream Evaluators
Key: SOLR-11338
URL: https://issues.apache.org/jira/browse/SOLR-11338
Project: Solr
Issue Type: New Feature
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Joel Bernstein
Streaming Expressions already supports Pearson's product moment correlation.
This ticket adds *Kendall's Kendall's Tau-b rank correlation* and *Spearmans
rank correlation* Stream Evaluators.
Functions are backed by Apache Commons Math
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