com.imsl.datamining

Class AssociationRule

java.lang.Object

com.imsl.datamining.AssociationRule

All Implemented Interfaces:

Serializable, Cloneable

public class AssociationRule
extends Object
implements Serializable, Cloneable

Association rule of the form .

The AssociationRule object contains members:

X:
Y:
Support of
Support of X
Support of Y
Confidence measure for
Lift measure for

See Also:

Example 1, Example 2, Serialized Form

Method Summary

Methods

Modifier and Type	Method and Description
double	getConfidence() The confidence measure of the association rule.
double	getLift() The lift measure of the association rule.
int[]	getSupport() Support for the Z, X, and Y components of the association rule.
int[]	getX() The X components of the association rule.
int[]	getY() The Y components of the association rule.
void	print() Print the member data in this object.
static void	print(AssociationRule[] ar) Print out the association rules in ar.

Methods inherited from class java.lang.Object

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

Method Detail

getConfidence

public double getConfidence()

The confidence measure of the association rule.

Returns:

a double specifying the confidence measure of the association rule.

getLift

public double getLift()

The lift measure of the association rule.

Returns:

a double specifying the lift measure of the association rule.

getSupport

public int[] getSupport()

Support for the Z, X, and Y components of the association rule.

Returns:

an int array containing the Z, X, and Y components of the association rule.

getX

public int[] getX()

The X components of the association rule.

Returns:

an int array containing the X components of the association rule.

getY

public int[] getY()

The Y components of the association rule.

Returns:

an int array containing the Y components of the association rule.

print

public void print()

Print the member data in this object.

The following is an example of this format:

X = {0} Y = {2}
supp(X)=27, supp(Y)=33, supp(X and Y)=22
conf= 0.81, lift=1.23

print

public static void print(AssociationRule[] ar)

Print out the association rules in ar.

Parameters:

ar - an AssociationRule array containing the association rules generated from a set of itemsets.