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https://issues.apache.org/jira/browse/SPARK-9297?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15030882#comment-15030882
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Apache Spark commented on SPARK-9297:
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User 'viirya' has created a pull request for this issue:
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Jihong MA commented on SPARK-9297:
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[~viirya] I just noticed your initial PR for Pearson's correlation is
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Liang-Chi Hsieh commented on SPARK-9297:
Yes. I would like to take it.
> covar_pop and covar_samp
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Jihong MA commented on SPARK-9297:
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I will work on this and prepare a PR using ImperativeAggregate