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From "Phil Steitz (JIRA)" <>
Subject [jira] [Updated] (MATH-1007) Add mode function to StatUtils class
Date Tue, 16 Jul 2013 14:32:48 GMT


Phil Steitz updated MATH-1007:

    Attachment: MATH-1007t.patch

Looks good.  Here are some tests.
> Add mode function to StatUtils class
> ------------------------------------
>                 Key: MATH-1007
>                 URL:
>             Project: Commons Math
>          Issue Type: New Feature
>            Reporter: Sebb
>         Attachments: MATH-1007.patch, MATH-1007t.patch
> It might be useful to have a StatUtils function to get the mode.
> However, this may be tricky as it does not easily fit in with the current StatUtils design.
> The mode can have multiple elements, but all the other methods only return a single value.
> There are at least two options for converting an array to a single value:
> - arbitrarily (or randomly) pick one
> - throw an Exception if there is more than one mode
> Or maybe StatUtils should return a double array.
> StatUtils also uses nested classes for all but the difference and normalize methods.
However the standard interfaces and classes don't support returning arrays.

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