net.sourceforge.nite.datainspection.impl
Class DiceMetric

java.lang.Object
  net.sourceforge.nite.datainspection.impl.DiceMetric

All Implemented Interfaces:

DistanceMetric

public class DiceMetric
extends java.lang.Object
implements DistanceMetric

class DiceMetric for distance metrics on SetValues

See Also:

Value, SetValue

Constructor Summary

DiceMetric()

Method Summary

double	distance(Value f, Value s) implements distance of interface DistanceMetric using Dice coefficient on two given sets
int	nrOfCommonElements(java.util.Set f, java.util.Set s)

Methods inherited from class java.lang.Object

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

Constructor Detail

DiceMetric

public DiceMetric()

Method Detail

distance

public double distance(Value f,
                       Value s)

implements distance of interface DistanceMetric using Dice coefficient on two given sets

Specified by:

distance in interface DistanceMetric

Parameters:

f - and s must be SetValues not null

Returns:

1- (the Dice coefficient of f and s)

nrOfCommonElements

public int nrOfCommonElements(java.util.Set f,
                              java.util.Set s)

Returns:

the number of elements in the product set of f and s