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Posted to issues@commons.apache.org by "Thomas Neidhart (JIRA)" <ji...@apache.org> on 2015/11/23 23:35:11 UTC

[jira] [Commented] (MATH-1254) Unit test CorrelatedRandomVectorGeneratorTest is flaky

    [ https://issues.apache.org/jira/browse/MATH-1254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15023247#comment-15023247 ] 

Thomas Neidhart commented on MATH-1254:
---------------------------------------

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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