[jira] [Updated] (MATH-1281) "Median" should not extend "Percentile"

["Rob Tompkins (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MATH-1281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rob Tompkins updated MATH-1281:
-------------------------------
    Fix Version/s:     (was: 4.0)
                   4.X

> "Median" should not extend "Percentile"
> ---------------------------------------
>
>                 Key: MATH-1281
>                 URL: https://issues.apache.org/jira/browse/MATH-1281
>             Project: Commons Math
>          Issue Type: Improvement
>    Affects Versions: 3.5
>            Reporter: Gilles
>            Priority: Minor
>             Fix For: 4.X
>
>
> Class {{Median}} (package {{o.a.c.m.stat.descriptive.rank}} inherits several {{evaluate}} methods from {{Percentile}} where one of the arguments is the percentile value. That doesn't make sense, and easily allows for user bugs.
> Either those inherited methods should be overridden by methods that throw a "forbidden" exception, or perhaps more correctly (but not backwards-compatible), the methods with a specific percentile argument should be made "static". The latter would also fix the same problem in the {{Percentile}} class itself.



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