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https://issues.apache.org/jira/browse/SPARK-9673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust resolved SPARK-9673.
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Resolution: Fixed
Looks like this was fixed by: https://github.com/apache/spark/pull/6297
> Use unbiased standard deviation in DataFrame.describe
> -----------------------------------------------------
>
> Key: SPARK-9673
> URL: https://issues.apache.org/jira/browse/SPARK-9673
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.5.0
> Reporter: Xiangrui Meng
> Assignee: Burak Yavuz
> Priority: Trivial
>
> It is common to compute unbiased standard deviation in statistics. Though is
> doesn't matter much for big data, it is nice to be consistent with existing
> statistics tools.
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