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From "Sean McCullough (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MATH-1159) Add quartiles to SummaryStatistics
Date Fri, 17 Jul 2015 02:55:05 GMT

    [ https://issues.apache.org/jira/browse/MATH-1159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14630693#comment-14630693
] 

Sean McCullough commented on MATH-1159:
---------------------------------------

https://github.com/apache/commons-math/pull/10

-Added additional constructor to SummaryStatistics so user can specific which percentiles
they would like to track.
-Added TreeMap to hold PSquarePercentile's.  TreeMap so toString() renders percentiles in
accenting order.
-PSquarePercentile's are updated and cleared according to existing methods.

I think Otmar's suggestion would be more effective, but I didn't want to refactor PSquarePercentile
to have additional markers.

> Add quartiles to SummaryStatistics
> ----------------------------------
>
>                 Key: MATH-1159
>                 URL: https://issues.apache.org/jira/browse/MATH-1159
>             Project: Commons Math
>          Issue Type: Improvement
>    Affects Versions: 3.3
>            Reporter: Phil Steitz
>
> Using PSquarePercentile, we can add quartile computation to SummaryStatistics.  Since
maintaining quartiles will add some overhead, implementation should allow the feature to be
turned off via some kind of constructor flag.  This does open the can of worms regarding turning
on / off other stats, which is probably a good thing to think about as the implementation
of this feature is developed.



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