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From "Gilles (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MATH-1404) Test failure which occur with LC_ALL=en_US.UTF8, but not with LC_ALL=de_DE.UTF-8
Date Tue, 28 Feb 2017 12:28:45 GMT

    [ https://issues.apache.org/jira/browse/MATH-1404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15887903#comment-15887903
] 

Gilles commented on MATH-1404:
------------------------------

This test can fail with probability 0.01 even if the distribution of the random numbers is
uniform.

If you run the test several times, you should get successes and failures that are not correlated
to the local settings.


> Test failure which occur with LC_ALL=en_US.UTF8, but not with LC_ALL=de_DE.UTF-8
> --------------------------------------------------------------------------------
>
>                 Key: MATH-1404
>                 URL: https://issues.apache.org/jira/browse/MATH-1404
>             Project: Commons Math
>          Issue Type: Bug
>            Reporter: Karl Richter
>
>  Specifying `LC_ALL=en_US.UTF-8` causes test failures like `RandomUtilsDataGeneratorJDKSecureRandomTest>RandomUtilsDataGeneratorAbstractTest.testNextLongNegativeRange:99->RandomUtilsDataGeneratorAbstractTest.checkNextLongUniform:130
Chisquare test failed p-value = 0.0082266579945659 chisquare statistic = 25.304000000000006.`
which don't seem to occur with `LC_ALL=de_DE.UTF-8`, see https://travis-ci.org/krichter722/commons-math/jobs/205896548
for details



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