weka.associations

Class FPGrowth.BinaryItem

java.lang.Object

weka.associations.FPGrowth.BinaryItem

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<FPGrowth.BinaryItem>

Enclosing class:

FPGrowth

public static class FPGrowth.BinaryItem
extends java.lang.Object
implements java.io.Serializable, java.lang.Comparable<FPGrowth.BinaryItem>

Inner class that handles a single binary item

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
BinaryItem(Attribute att, int valueIndex)

Method Summary

Modifier and Type	Method and Description
int	compareTo(FPGrowth.BinaryItem comp) Ensures that items will be sorted in descending order of frequency.
void	decreaseFrequency() Decrement the frequency of this item.
void	decreaseFrequency(int f) Decrease the frequency of this item.
boolean	equals(java.lang.Object compareTo)
Attribute	getAttribute() Get the attribute that this item corresponds to.
int	getFrequency() Get the frequency of this item.
int	getValueIndex() Get the value index for this item.
int	hashCode()
void	increaseFrequency() Increment the frequency of this item.
void	increaseFrequency(int f) Increase the frequency of this item.
java.lang.String	toString() A string representation of this item.
java.lang.String	toString(boolean freq) A string representation of this item.
java.lang.String	toXML()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

BinaryItem

public BinaryItem(Attribute att,
                  int valueIndex)
           throws java.lang.Exception

Throws:

java.lang.Exception

Method Detail

increaseFrequency

public void increaseFrequency(int f)

Increase the frequency of this item.

Parameters:

f - the amount to increase the frequency by.

decreaseFrequency

public void decreaseFrequency(int f)

Decrease the frequency of this item.

Parameters:

f - the amount by which to decrease the frequency.

increaseFrequency

public void increaseFrequency()

Increment the frequency of this item.

decreaseFrequency

public void decreaseFrequency()

Decrement the frequency of this item.

getFrequency

public int getFrequency()

Get the frequency of this item.

Returns:

the frequency.

getAttribute

public Attribute getAttribute()

Get the attribute that this item corresponds to.

Returns:

the corresponding attribute.

getValueIndex

public int getValueIndex()

Get the value index for this item.

Returns:

the value index.

toString

public java.lang.String toString()

A string representation of this item.

Overrides:

toString in class java.lang.Object

Returns:

a string representation of this item.

toString

public java.lang.String toString(boolean freq)

A string representation of this item.

Parameters:

freq - true if the frequency should be included.

Returns:

a string representation of this item.

toXML

public java.lang.String toXML()

compareTo

public int compareTo(FPGrowth.BinaryItem comp)

Ensures that items will be sorted in descending order of frequency. Ties are ordered by attribute name.

Specified by:

compareTo in interface java.lang.Comparable<FPGrowth.BinaryItem>

Parameters:

comp - the BinaryItem to compare against.

equals

public boolean equals(java.lang.Object compareTo)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object