[jira] [Commented] (MATH-460) Levy Distribution

["Andrew Waterman (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MATH-460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13448179#comment-13448179 ] 

Andrew Waterman commented on MATH-460:
--------------------------------------

I've taken another stab at most of the class, doing an independent implementation working from the equations presented in Wikipedia and modifying the implementation where it differed from Pavel's. I haven't been able to implement the following, the JavaDoc is a bit vague in RealDistribution:

   /**
     * Use this method to get information about whether the lower bound
     * of the support is inclusive or not.
     *
     * @return whether the lower bound of the support is inclusive or not
     */
    boolean isSupportLowerBoundInclusive();

    /**
     * Use this method to get information about whether the upper bound
     * of the support is inclusive or not.
     *
     * @return whether the upper bound of the support is inclusive or not
     */
  isSupportUpperBoundInclusive();

    /**
     * Use this method to get information about whether the support is connected,
     * i.e. whether all values between the lower and upper bound of the support
     * are included in the support.
     *
     * @return whether the support is connected or not
     */
    boolean isSupportConnected();

Love some clarification (links would be appreciated) and I can try and continue on a bit further. Otherwise, I have some work that I can attach to share with the future. :)
                
> Levy Distribution
> -----------------
>
>                 Key: MATH-460
>                 URL: https://issues.apache.org/jira/browse/MATH-460
>             Project: Commons Math
>          Issue Type: New Feature
>            Reporter: Pavel Ryzhov
>            Priority: Minor
>             Fix For: 3.2
>
>         Attachments: levy_math_460.patch
>
>
> Pretty straightforward implementation of Levy Distribution (not Levy alpha-stable) according to http://en.wikipedia.org/wiki/Lévy_distribution.

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