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Date: Thu, 24 Nov 2011 20:48:39 +0000 (UTC)
From: "Christian Winter (Commented) (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (MATH-699) inverseCumulativeDistribution fails
 with cumulative distribution having a plateau
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    [ https://issues.apache.org/jira/browse/MATH-699?page=3Dcom.atlassian.j=
ira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D131568=
97#comment-13156897 ]=20

Christian Winter commented on MATH-699:
---------------------------------------

Thanks for the patch, S=C3=A9bastien.
There is no need for a plateaux detection flag in the constructor. While de=
aling with the distribution classes and interfaces, I saw the method isSupp=
ortConnected(). This method will tell whether plateaux might occur because =
a plateau in the cdf corresponds to a gap in the support.
               =20
> inverseCumulativeDistribution fails with cumulative distribution having a=
 plateau
> -------------------------------------------------------------------------=
--------
>
>                 Key: MATH-699
>                 URL: https://issues.apache.org/jira/browse/MATH-699
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 3.0
>            Reporter: S=C3=A9bastien Brisard
>            Assignee: S=C3=A9bastien Brisard
>            Priority: Minor
>         Attachments: AbstractContinuousDistributionTest.java, inv-cum-new=
-impl.zip
>
>
> This bug report follows MATH-692. The attached unit test fails. As requir=
ed by the definition in MATH-692, the lower-bound of the interval on which =
the cdf is constant should be returned. This is not so at the moment.

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