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From "Erik van Ingen (JIRA)" <>
Subject [jira] Updated: (MATH-426) Normalization (Standardization)
Date Tue, 05 Oct 2010 09:01:38 GMT


Erik van Ingen updated MATH-426:


This patch adds the normalize method to the StatsUtil class and has this signature:
    public static double[] normalize(final double[] sample) 

The patch includes the implementation and test, added in SVN diff format. 

> Normalization (Standardization)
> -------------------------------
>                 Key: MATH-426
>                 URL:
>             Project: Commons Math
>          Issue Type: New Feature
>    Affects Versions: Nightly Builds
>         Environment: Java
>            Reporter: Erik van Ingen
>             Fix For: Nightly Builds
>         Attachments:,
>   Original Estimate: 1h
>  Remaining Estimate: 1h
> Commons Math is missing a function to normalize a sample of values to sample with a mean
of 0 and a standard variation of 0. 
> This Issue is related to this email thread:
> I am preparing a patch which contains an implementation plus test. The method normalize
is added to the StatsUtil class. I will try to add this patch to this issue. 

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