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Posted to issues@commons.apache.org by "Wang Qiang (JIRA)" <ji...@apache.org> on 2016/07/15 06:29:20 UTC

[jira] [Created] (MATH-1381) BinomialTest P-value > 1

Wang Qiang created MATH-1381:
--------------------------------

             Summary: BinomialTest P-value > 1
                 Key: MATH-1381
                 URL: https://issues.apache.org/jira/browse/MATH-1381
             Project: Commons Math
          Issue Type: Bug
            Reporter: Wang Qiang


When I use the Binomial Test, I got p-value > 1 for two sided check.

Example:
(new BinomialTest()).binomialTest(200, 200, 0.9950429, AlternativeHypothesis.TWO_SIDED) == 1.3701357550780435

In my case, if the expected p-value is 1 (calculated by package in other language, scipy in this case), the p-value returned could be > 1



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