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https://issues.apache.org/jira/browse/BEAM-12550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brian Hulette updated BEAM-12550:
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Status: Open (was: Triage Needed)
> Implement parallelized skew and kurtosis
> -----------------------------------------
>
> Key: BEAM-12550
> URL: https://issues.apache.org/jira/browse/BEAM-12550
> Project: Beam
> Issue Type: Improvement
> Components: dsl-dataframe
> Reporter: Brian Hulette
> Priority: P2
>
> skew and kurtosis should be parallelizable using a similar [approach as std
> and
> var|https://github.com/apache/beam/blob/a0f5e932d8a9aa491b16361abdc629b5e9a483f6/sdks/python/apache_beam/dataframe/frames.py#L1307-L1310].
> See
> https://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#Higher-order_statistics
> which has information on extending that approach to calculating the third and
> fourth central moments, needed for skew and kurtosis.
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