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https://issues.apache.org/jira/browse/PIG-277?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ajay Garg updated PIG-277:
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Attachment: (was: stat.patch)
> UDF for computing correlation and covariance between data sets
> --------------------------------------------------------------
>
> Key: PIG-277
> URL: https://issues.apache.org/jira/browse/PIG-277
> Project: Pig
> Issue Type: New Feature
> Reporter: Ajay Garg
> Priority: Minor
>
> UDFs for computing correlation and covariance between data sets. Use
> following commands to compute covariance
> A = load 'input.xml' using PigStorage(':');
> B = group A all;
> define c COV('a','b','c');
> D = foreach B generate group,c(A.$0,A.$1,A.$2);
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