Gunel Jahangirova created MATH-1258:
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Summary: 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 classes, 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 b is greater than the length of array a, the
method compute() in all the five classes produces
java.lang.ArrayIndexOutOfBoundsException.
For example,
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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