nz.ac.waikato.mcennis.rat.reusablecores.distance
Class CosineDistance

java.lang.Object
  nz.ac.waikato.mcennis.rat.reusablecores.distance.CosineDistance

All Implemented Interfaces:

DistanceFunction

public class CosineDistance
extends java.lang.Object
implements DistanceFunction

Adapted from Anna Huang's distance metric for Weka by Daniel McEnnis

Constructor Summary

CosineDistance()

Method Summary

double	distance(DataVector inst1, DataVector inst2) Return the distance between the two given vectors as a double.
CosineDistance	prototype()

Methods inherited from class java.lang.Object

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

Constructor Detail

CosineDistance

public CosineDistance()

Method Detail

distance

public double distance(DataVector inst1,
                       DataVector inst2)

Description copied from interface: DistanceFunction

Return the distance between the two given vectors as a double.

Specified by:

distance in interface DistanceFunction

Parameters:

inst1 - left data vector

inst2 - right data vector

Returns:

distance by a given metric

prototype

public CosineDistance prototype()

Specified by:

prototype in interface DistanceFunction