keel.Algorithms.UnsupervisedLearning.AssociationRules.FuzzyRuleLearning.Fingrams

Class Itemset

java.lang.Object

keel.Algorithms.UnsupervisedLearning.AssociationRules.FuzzyRuleLearning.Fingrams.Itemset

public class Itemset
extends java.lang.Object

It represents an itemset throughout the execution of the algorithm

Since:

JDK1.6

Version:

1.0

Author:

Written by Alvaro Lopez

Constructor Summary

Constructors

Constructor and Description
Itemset() Default constructor

Method Summary

Modifier and Type	Method and Description
void	add(Item item) It allows to add an item into an itemset
void	addItemset(Itemset newItemset) It allows to add an item into an itemset
void	addNew(Item item) It allows to add an item into an itemset
java.lang.String	calculateSupport(myDataset dataset, DataBase database, double umbral) It computes the support of an itemset
Itemset	clone() It allows to clone correctly an itemset
Item	get(int pos) It returns the item stored at the index "pos" within an itemset
double	getSupport() It returns the support of an itemset
Item	remove(int pos) It allows to remove the item stored at the index "pos" within an itemset
int	size() It returns the number of items contained into an itemset

Methods inherited from class java.lang.Object

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

Constructor Detail

Itemset

public Itemset()

Default constructor

Method Detail

clone

public Itemset clone()

It allows to clone correctly an itemset

Overrides:

clone in class java.lang.Object

Returns:

A copy of the itemset

add

public void add(Item item)

It allows to add an item into an itemset

Parameters:

item - An item to be added into the itemset

addNew

public void addNew(Item item)

It allows to add an item into an itemset

Parameters:

item - An item to be added into the itemset

addItemset

public void addItemset(Itemset newItemset)

It allows to add an item into an itemset

Parameters:

newItemset - An item to be added into the itemset

get

public Item get(int pos)

It returns the item stored at the index "pos" within an itemset

Parameters:

pos - The index of the item to be returned

Returns:

The item which is stored at the index "pos" of the itemset

remove

public Item remove(int pos)

It allows to remove the item stored at the index "pos" within an itemset

Parameters:

pos - The index of the item to be removed

Returns:

The item which was previously removed from the itemset

size

public int size()

It returns the number of items contained into an itemset

Returns:

A value representing the number of items contained into the itemset

getSupport

public double getSupport()

It returns the support of an itemset

Returns:

A value representing the support of the itemset

calculateSupport

public java.lang.String calculateSupport(myDataset dataset,
                                         DataBase database,
                                         double umbral)

It computes the support of an itemset

Parameters:

dataset - dataset given used to compute the support.

database - The instance of the fuzzy dataset for dealing with its fuzzy transactions

umbral - degree threshold.

Returns:

An array of integer representing the TIDs covered by the itemset