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From "Phil Steitz (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MATH-167) ConvergenceException in normal CDF
Date Sun, 22 Jul 2007 02:35:06 GMT

    [ https://issues.apache.org/jira/browse/MATH-167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12514453
] 

Phil Steitz commented on MATH-167:
----------------------------------

Fixed for nomal distribution in r558450.
Leaving open because we should look at other distributions before closing.  

> ConvergenceException in normal CDF
> ----------------------------------
>
>                 Key: MATH-167
>                 URL: https://issues.apache.org/jira/browse/MATH-167
>             Project: Commons Math
>          Issue Type: Bug
>            Reporter: Mikko Kauppila
>            Priority: Minor
>             Fix For: 1.2
>
>
> NormalDistributionImpl::cumulativeProbability(double x) throws ConvergenceException
> if x deviates too much from the mean. For example, when x=+/-100, mean=0, sd=1.
> Of course the value of the CDF is hard to evaluate in these cases,
> but effectively it should be either zero or one.

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