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From "Christophe S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MATH-1236) Improve Kolmogorov-Smirnov statistic for two samples
Date Wed, 18 Nov 2015 14:11:11 GMT

    [ https://issues.apache.org/jira/browse/MATH-1236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15011043#comment-15011043
] 

Christophe S commented on MATH-1236:
------------------------------------

Hi,
Moreover it seems the patch fixes also the problem when we compare two identical distributions
(with exactly the same arrays as input). Now the distance is 0, before it wasn't the case!

Thx!

> Improve Kolmogorov-Smirnov statistic for two samples
> ----------------------------------------------------
>
>                 Key: MATH-1236
>                 URL: https://issues.apache.org/jira/browse/MATH-1236
>             Project: Commons Math
>          Issue Type: Improvement
>            Reporter: Otmar Ertl
>             Fix For: 4.0, 3.6
>
>         Attachments: patch
>
>
> I reimplemented the Kolmogorov-Smirnov test statistic for two samples because of its
problems with identical values. Although its already fixed in the meantime (see MATH-1197),
the proposed code is an improvement, because it is simpler and does not require binary searches.



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