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https://issues.apache.org/jira/browse/MATH-1246?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14735930#comment-14735930
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Phil Steitz commented on MATH-1246:
-----------------------------------
Pushed changes to exactP per outline above in
ce98d00852e21ce34d8d247db7f6be138967b559.
The same problem applies to monteCarloP. It is not obvious to me how to make
the necessary changes to the improved implementation there to accommodate ties.
I suspect it is not possible, so unless others have better ideas, I will add
back a modified version of the earlier naive implementation that samples the
multi-set.
> Kolmogorov-Smirnov 2-sample test does not correctly handle ties
> ---------------------------------------------------------------
>
> Key: MATH-1246
> URL: https://issues.apache.org/jira/browse/MATH-1246
> Project: Commons Math
> Issue Type: Bug
> Reporter: Phil Steitz
>
> For small samples, KolmogorovSmirnovTest(double[], double[]) computes the
> distribution of a D-statistic for m-n sets with no ties. No warning or
> special handling is delivered in the presence of ties.
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