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From "Phil Steitz (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MATH-1131) Kolmogorov-Smirnov Tests takes 'forever' on 10,000 item dataset
Date Fri, 19 Sep 2014 16:24:34 GMT

     [ https://issues.apache.org/jira/browse/MATH-1131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Phil Steitz resolved MATH-1131.
-------------------------------
    Resolution: Fixed

> Kolmogorov-Smirnov Tests takes 'forever' on 10,000 item dataset
> ---------------------------------------------------------------
>
>                 Key: MATH-1131
>                 URL: https://issues.apache.org/jira/browse/MATH-1131
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 3.3
>         Environment: Java 8
>            Reporter: Schalk W. Cronjé
>         Attachments: 1.txt, MATH-1131.patch, ReproduceKsIssue.groovy, ReproduceKsIssue.java
>
>
> I have code simplified to the following:
>     KolmogorovSmirnovTest kst = new KolmogorovSmirnovTest();
>     NormalDistribution nd = new NormalDistribution(mean,stddev);
>     kst.kolmogorovSmirnovTest(nd,dataset)
> I find that for my dataset of 10,000 items, the call to kolmogorovSmirnovTest takes 'forever'.
It has not returned after nearly 15minutes and in one my my tests has gone over 150MB in 
memory usage. 



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