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https://issues.apache.org/jira/browse/MATH-540?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phil Steitz closed MATH-540.
----------------------------

    Resolution: Not A Problem

I am sorry.  I forgot that we had in fact already implemented this in version 
2.2. See AbstractIntegerDistribution#sample.  The base class implementation 
delegates to RandomDataImpl#nextInversionDeviate (adding one per the last 
comment).

> 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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