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https://issues.apache.org/jira/browse/MATH-1254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15023247#comment-15023247
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Thomas Neidhart commented on MATH-1254:
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Luc has already changed the test to use a fixed seed.
Increasing the number of samples also improves the robustness of the test.
> Unit test CorrelatedRandomVectorGeneratorTest is flaky
> ------------------------------------------------------
>
> Key: MATH-1254
> URL: https://issues.apache.org/jira/browse/MATH-1254
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 4.0
> Reporter: Otmar Ertl
> Priority: Minor
> Attachments: seed628.patch
>
>
> CorrelatedRandomVectorGeneratorTest.testSampleWithZeroCovariance sometimes
> fails. The failure can be reproduced by setting the seed of the
> JDKRandomGenerator in createSampler equal to 628.
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