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Posted to issues@commons.apache.org by "Luc Maisonobe (JIRA)" <ji...@apache.org> on 2011/03/23 21:11:05 UTC
[jira] [Closed] (MATH-384) DescriptiveStatistics based on double[]
[ https://issues.apache.org/jira/browse/MATH-384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Luc Maisonobe closed MATH-384.
------------------------------
Closing issue as it was included in version 2.2, which has been released
> DescriptiveStatistics based on double[]
> ---------------------------------------
>
> Key: MATH-384
> URL: https://issues.apache.org/jira/browse/MATH-384
> Project: Commons Math
> Issue Type: New Feature
> Reporter: Mikkel Meyer Andersen
> Assignee: Mikkel Meyer Andersen
> Priority: Minor
> Fix For: 2.2, 3.0
>
> Attachments: MATH384-2_2, MATH384-3_0, ResizableArrayInstantiatedByArray, patch-MATH-384-2
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> Right now the DescriptiveStatistics is for ResizableDoubleArray, but if the user has the double[] data she wishes to get DescriptiveStatistics for there is no way of doing this (besides the inefficient way of creating a ResizableDoubleArray from the double[]).
> It would be possible to use StatUtils, but it does not contain near as much functionality as DescriptiveStatistics.
> Idea: Create a DescriptiveStatistics for double[] also. I'm not sure which way of implementing it would be the best, but one way would be to make DescriptiveStatistics abstract with all but the apply-method implemented as now. The apply-method should be made as abstract which then has to implemented in the extensions together with a field containing the values. (addValue, windowSize etc. has to go in the ResizableDoubleArray-extension.) The double[]-extension should then have a constructor taking double[] as a parameter.
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