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https://issues.apache.org/jira/browse/MATH-693?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phil Steitz resolved MATH-693.
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Resolution: Fixed
> StatUtils, DescriptiveStatistics and SummaryStatistics should expose
> population variance
> ----------------------------------------------------------------------------------------
>
> Key: MATH-693
> URL: https://issues.apache.org/jira/browse/MATH-693
> Project: Commons Math
> Issue Type: Improvement
> Affects Versions: 1.0, 1.1, 1.2, 2.0, 2.1, 2.2
> Reporter: Phil Steitz
> Fix For: 3.0
>
>
> Javadoc should be clearer that what is returned in the bias-corrected
> variance (rather than just linking to the Variance javadoc). StatUtils
> should add variance methods that take a boolean bias correction parameter and
> DescriptiveStatistics and SummaryStatistics should either expose a setter or
> similarly add methods with boolean arguments. We need to remember to fix the
> synchronized versions as well. Patches welcome!
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