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https://issues.apache.org/jira/browse/MATH-426?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Erik van Ingen updated MATH-426:
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Attachment: StatUtilsTestDiff.java
StatUtilsDiff.java
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: https://issues.apache.org/jira/browse/MATH-426
> Project: Commons Math
> Issue Type: New Feature
> Affects Versions: Nightly Builds
> Environment: Java
> Reporter: Erik van Ingen
> Fix For: Nightly Builds
>
> Attachments: StatUtilsDiff.java, StatUtilsTestDiff.java
>
> 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:
> http://www.mail-archive.com/[email protected]/msg05396.html
> 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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