org.jscience.mathematics.geometry
Class MinkowskiMetric

java.lang.Object
  org.jscience.mathematics.geometry.MinkowskiMetric

All Implemented Interfaces:

Metric

public final class MinkowskiMetric
extends java.lang.Object
implements Metric

This class provides an implementation for Metric, using the Minkowski metric. Minkowski Metric, also known as the L_p norm. Special cases include the Manhatten city-block distance with q=1 and the Euclidean distance with q=2. The special case with q equal to positive infinity is supported.

Constructor Summary

MinkowskiMetric(double q)
Constructor for Minkowski metric.

Method Summary

ComparableNumber	getDistance(Vector a, Vector b) DOCUMENT ME!
double	getQParameter()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MinkowskiMetric

public MinkowskiMetric(double q)

Constructor for Minkowski metric.

Parameters:

q - Power of component wise absolute difference; must be at least 1

Throws:

java.lang.IllegalArgumentException - DOCUMENT ME!

Method Detail

getQParameter

public double getQParameter()

getDistance

public ComparableNumber getDistance(Vector a,
                                    Vector b)

Description copied from interface: Metric

DOCUMENT ME!

Specified by:

getDistance in interface Metric

Parameters:

a - DOCUMENT ME!

b - DOCUMENT ME!

Returns:

DOCUMENT ME!