One of Variance.evaluate() methods does not work correctly
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Key: MATH-704
URL: https://issues.apache.org/jira/browse/MATH-704
Project: Commons Math
Issue Type: Bug
Affects Versions: 2.2
Environment: Java 1.6
Reporter: Leonid Ilyevsky
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.
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