org.apache.commons.math3.ml.distance

Interface DistanceMeasure

All Superinterfaces:

java.io.Serializable

All Known Implementing Classes:

CanberraDistance, ChebyshevDistance, EarthMoversDistance, EuclideanDistance, ManhattanDistance

public interface DistanceMeasure
extends java.io.Serializable

Interface for distance measures of n-dimensional vectors.

Since:

3.2

Method Summary

Modifier and Type	Method and Description
double	compute(double[] a, double[] b) Compute the distance between two n-dimensional vectors.

Method Detail

compute

double compute(double[] a,
               double[] b)
        throws DimensionMismatchException

Compute the distance between two n-dimensional vectors.

The two vectors are required to have the same dimension.

Parameters:

a - the first vector

b - the second vector

Returns:

the distance between the two vectors

Throws:

DimensionMismatchException - if the array lengths differ.