ca.pfv.spmf.algorithms.frequentpatterns.zart

Class TFTableFrequent

java.lang.Object

ca.pfv.spmf.algorithms.frequentpatterns.zart.TFTableFrequent

public class TFTableFrequent
extends java.lang.Object

This class represents the TF table of frequent itemsets, used by the Zart algorithm.

See Also:

AlgoZart

Field Summary

Fields

Modifier and Type	Field and Description
boolean	emptySetIsClosed indicate if the empty set is closed or not
java.util.List<java.util.List<Itemset>>	levels This store the frequent itemsets by size At position i, there are the list of frequent itemsets of size i

Constructor Summary

Constructors

Constructor and Description
TFTableFrequent()

Method Summary

Modifier and Type	Method and Description
java.util.List<Itemset>	getLevelForZart(int i) Get the frequent itemsets of a given size i.

Methods inherited from class java.lang.Object

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

Field Detail

levels

public final java.util.List<java.util.List<Itemset>> levels

This store the frequent itemsets by size At position i, there are the list of frequent itemsets of size i

emptySetIsClosed

public boolean emptySetIsClosed

indicate if the empty set is closed or not

Constructor Detail

TFTableFrequent

public TFTableFrequent()

Method Detail

getLevelForZart

public java.util.List<Itemset> getLevelForZart(int i)

Get the frequent itemsets of a given size i.

Parameters:

i - the size i.

Returns:

a list of itemsets