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List:       jakarta-commons-dev
Subject:    [jira] [Created] (MATH-1279) Avoid unexpected errors in EmpiricalDistribution
From:       "David Georg Reichelt (JIRA)" <jira () apache ! org>
Date:       2015-09-30 9:59:04
Message-ID: JIRA.12901546.1443607143000.111672.1443607144597 () Atlassian ! JIRA
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David Georg Reichelt created MATH-1279:
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             Summary: Avoid unexpected errors in EmpiricalDistribution
                 Key: MATH-1279
                 URL: https://issues.apache.org/jira/browse/MATH-1279
             Project: Commons Math
          Issue Type: Improvement
    Affects Versions: 3.5
         Environment: Ubuntu 14.04
            Reporter: David Georg Reichelt
            Priority: Trivial


Loading an empirical distributions results in an ArrayIndexOutOfBoundsException when \
giving 0 als bin size, for example in:

double values[] = new double[] { 1, 2 };
EmpiricalDistribution distribution = new EmpiricalDistribution(0);
distribution.load(values);

To keep the error more understandable to the user, it would be nice if an \
RuntimeException or something like this would be thrown when initializing the \
EmpiricalDistribution with 0 bins. Especially when following the rule of thumb that \
there should be values size / 10 bins, it is hard to find out that the error is \
caused by a wrong bin size.



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