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From "Phil Steitz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MATH-672) EmpiricalDistribution(Impl) should implement the Distribution interface
Date Mon, 22 Oct 2012 14:22:12 GMT

    [ https://issues.apache.org/jira/browse/MATH-672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13481393#comment-13481393
] 

Phil Steitz commented on MATH-672:
----------------------------------

I have this coded, am just finishing tests.  I may be able to get it in for 3.1, if MATH-878
does not take me too long.  I am OK waiting on this one though if we are ready to roll 3.1
                
> EmpiricalDistribution(Impl) should implement the Distribution interface
> -----------------------------------------------------------------------
>
>                 Key: MATH-672
>                 URL: https://issues.apache.org/jira/browse/MATH-672
>             Project: Commons Math
>          Issue Type: Improvement
>    Affects Versions: 2.2
>            Reporter: Phil Steitz
>             Fix For: 3.2
>
>
> To compute cumulative probability at a point x
> if no data have been loaded, throw IllegalStateException
> if x is below the global min, return 0
> if x is above the global max, return 1
> otherwise find the bin that x belongs to, sum the probabilities of the bins below x's
bin and use the configured kernel to compute how much of the containing bin's mass should
be added the total

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