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Posted to issues@commons.apache.org by "Marlon Gaspar Machado (JIRA)" <ji...@apache.org> on 2015/10/07 16:29:27 UTC

[jira] [Created] (MATH-1280) DescriptiveStatistics methods return NaN for operations on arrays with single items

Marlon Gaspar Machado created MATH-1280:
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             Summary: 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


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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