[jira] [Resolved] (MATH-1258) compute() method in classes in org.apache.commons.math4.ml.distance package

["Thomas Neidhart (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MATH-1258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Neidhart resolved MATH-1258.
-----------------------------------
    Resolution: Invalid

Closing this as invalid as the javadoc of DistanceMeasure#compute clearly states that the provided arrays need to have the same dimension.

> compute() method in classes in org.apache.commons.math4.ml.distance package
> ---------------------------------------------------------------------------
>
>                 Key: MATH-1258
>                 URL: https://issues.apache.org/jira/browse/MATH-1258
>             Project: Commons Math
>          Issue Type: Bug
>            Reporter: Gunel Jahangirova
>            Priority: Minor
>
> Hi!
> There are five classes CanberraDistance, ChebyshevDistance, EarthMoversDistance, EuclideanDistance and ManhattanDistance in org.apache.commons.math4.ml.distance package, which compute different types of distances. Each of them contains method compute(double[] a, double[] b) that accepts two double arrays as variables.
> However, if the lengths of array a is greater than the length of array b, the method compute() in all the five classes produces java.lang.ArrayIndexOutOfBoundsException.
> For example,
>          private void test0() {
>            CanberraDistance distance = new CanberraDistance();
>     
>             final double[] a = { 1, 2, 3, 4, 9, 4 };
>             final double[] b = { -5, -6, 7, 4, 3 };
>             distance.compute(a, b);
>        }



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