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https://issues.apache.org/jira/browse/MATH-540?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13003414#comment-13003414
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Ole Ersoy commented on MATH-540:
--------------------------------
OK - I think it's starting to make more sense to me now. So when implementing
sampling we just add one to the value returned by
inverseCumulativeDistribution, unless the uniform probability argument is 1?
> AbstractIntegerDistribution.inverseCumulativeProbability(...) Bug
> -----------------------------------------------------------------
>
> Key: MATH-540
> URL: https://issues.apache.org/jira/browse/MATH-540
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 2.1
> Reporter: Ole Ersoy
> Fix For: 3.0
>
> Attachments: DummyDiscreteDistribution.java,
> DummyDiscreteDistributionTest.java
>
>
> The AbstractIntegerDistribution.inverseCumulativeProbability(...) function
> attempts to decrement the lower bound of discrete distributions to values
> that go below the lower bound.
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