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From "Thomas Neidhart (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MATH-1280) DescriptiveStatistics methods return NaN for operations on arrays with single items
Date Wed, 07 Oct 2015 19:32:27 GMT

     [ https://issues.apache.org/jira/browse/MATH-1280?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Thomas Neidhart resolved MATH-1280.
-----------------------------------
       Resolution: Duplicate
    Fix Version/s: 3.6
                   4.0

This is a duplicate of the referenced issue and has already been fixed.

> DescriptiveStatistics methods return NaN for operations on arrays with single items
> -----------------------------------------------------------------------------------
>
>                 Key: MATH-1280
>                 URL: https://issues.apache.org/jira/browse/MATH-1280
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 3.4
>            Reporter: Marlon Gaspar Machado
>             Fix For: 4.0, 3.6
>
>
> 1. Create a DescriptiveStatistics object passing an array with only one value
> 2. Call getMean() method
> 3. Call getStandardDeviation() method
> 4. Both return NaN



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