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Posted to issues@spark.apache.org by "Yanbo Liang (JIRA)" <ji...@apache.org> on 2015/08/26 05:39:45 UTC

[jira] [Commented] (SPARK-10129) math function: stddev_samp

    [ https://issues.apache.org/jira/browse/SPARK-10129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14712439#comment-14712439 ] 

Yanbo Liang commented on SPARK-10129:
-------------------------------------

I'm working on it.

> math function: stddev_samp
> --------------------------
>
>                 Key: SPARK-10129
>                 URL: https://issues.apache.org/jira/browse/SPARK-10129
>             Project: Spark
>          Issue Type: New Feature
>          Components: SQL
>            Reporter: Davies Liu
>
> Use the STDDEV_SAMP function to return the standard deviation of a sample variance.
> http://www-01.ibm.com/support/knowledgecenter/SSPT3X_3.0.0/com.ibm.swg.im.infosphere.biginsights.bigsql.doc/doc/bsql_stdev_samp.html



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