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https://issues.apache.org/jira/browse/MATH-1020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13734797#comment-13734797
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Gilles commented on MATH-1020:
------------------------------
Proposed fix committed in revision 1512306.
> "nextPermutation" method broken (in class
> "o.a.c.m.random.RandomDataGenerator")
> -------------------------------------------------------------------------------
>
> Key: MATH-1020
> URL: https://issues.apache.org/jira/browse/MATH-1020
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 3.2
> Reporter: Gilles
> Fix For: 3.3
>
> Attachments: MATH-1020.patch
>
>
> Correct behaviour of this method relied on the [broken behaviour of
> "shuffle"|MATH-1019].
> With a fixed "shuffle", the "nextSample()" unit test caught the bug in this
> method.
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