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https://issues.apache.org/jira/browse/MATH-431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12976001#action_12976001
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Mikkel Meyer Andersen commented on MATH-431:
--------------------------------------------

Starting point for fixing this has been committed in revision 1053836. Work 
still needs to be done, so this issue is not resolved yet.

> New tests: Wilcoxon signed-rank test and Mann-Whitney U
> -------------------------------------------------------
>
>                 Key: MATH-431
>                 URL: https://issues.apache.org/jira/browse/MATH-431
>             Project: Commons Math
>          Issue Type: New Feature
>            Reporter: Mikkel Meyer Andersen
>            Assignee: Mikkel Meyer Andersen
>            Priority: Minor
>             Fix For: 3.0
>
>         Attachments: MannWhitneyUTest.java, MannWhitneyUTestImpl.java, 
> MATH431-patch1, WilcoxonSignedRankTest.java, WilcoxonSignedRankTestImpl.java
>
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> Wilcoxon signed-rank test and Mann-Whitney U are commonly used non-parametric 
> statistical hypothesis tests (e.g. instead of various t-tests when normality 
> is not present).

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