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  1. Commons Math
  2. MATH-704

One of Variance.evaluate() methods does not work correctly

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 2.2
    • 3.0
    • None
    • None

    • Java 1.6

    Description

      The method org.apache.commons.math.stat.descriptive.moment.Variance.evaluate(double[] values, double[] weights, double mean, int begin, int length) does not work properly. Looks loke it ignores the length parameter and grabs the whole dataset.
      Similar method in Mean class seems to work.
      I did not check other methods taking the part of the array; they may have the same problem.

      Workaround: I had to shrink my arrays and use the method without the length.

      Attachments

        1. MATH-704.patch
          0.6 kB
          Thomas Neidhart

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            psteitz Phil Steitz
            lilyevsky Leonid Ilyevsky
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              Updated:
              Resolved:

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