[jira] Updated: (PIG-277) UDF for computing correlation and covariance between data sets

["Ajay Garg (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PIG-277?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ajay Garg updated PIG-277:
--------------------------

    Attachment: stat.patch

Patch attached...

> 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
>         Attachments: stat.patch
>
>
> 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 COR('a','b','c');
> D = foreach B generate group,c(A.$0,A.$1,A.$2);

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