[
https://issues.apache.org/jira/browse/MATH-1131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14044019#comment-14044019
]
Schalk W. Cronjé commented on MATH-1131:
----------------------------------------
[[email protected]]said on the ML:
bq. Sorry for responding to the list but I have only mobile atm . IIRC the
roundedK method should not be creating matrices of BigFractions, but rather
using doubles.
I did a quick hack on the test code I used for createH earlier to use double
instead and the speed improvement as expected is immense - down from 36min to
9min. I cannot comment on whether the change in precision is significant, but
not was not the point of the test.
> 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, 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.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
