commons-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Phil Steitz (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MATH-384) DescriptiveStatistics based on double[]
Date Mon, 27 Dec 2010 23:24:47 GMT

    [ https://issues.apache.org/jira/browse/MATH-384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12975375#action_12975375
] 

Phil Steitz commented on MATH-384:
----------------------------------

+1 for both patches.

> 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
>
>         Attachments: MATH384-2_2, MATH384-3_0, patch-MATH-384-2, ResizableArrayInstantiatedByArray
>
>   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.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message