ca.pfv.spmf.algorithms.sequentialpatterns.BIDE_and_prefixspan

Class PseudoSequence

java.lang.Object

ca.pfv.spmf.algorithms.sequentialpatterns.BIDE_and_prefixspan.PseudoSequence

Direct Known Subclasses:

PseudoSequenceBIDE

public class PseudoSequence
extends java.lang.Object

This represents a sequence from a projected database (as based in PrefixSpan). Since it is a projected sequence, it makes reference to the original sequence. This class is used by the PrefixSpan and BIDE+ algorithms. Copyright (c) 2008-2012 Philippe Fournier-Viger This file is part of the SPMF DATA MINING SOFTWARE (http://www.philippe-fournier-viger.com/spmf). SPMF is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. SPMF is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with SPMF. If not, see .

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
java.lang.Integer	getItemAtInItemsetAt(int indexItem, int indexItemset) Get an item at a given position inside a given itemset
java.util.List<java.lang.Integer>	getItemset(int index) Get the itemset at a given position
Sequence	getOriginalSequence() Get the original sequence corresponding to this projected sequence.
int	getSizeOfItemsetAt(int index) Return the size in terms of items of an itemset at a given position (overloaded).
void	print() Print this pseudo-sequence to System.out.
java.lang.String	toString() Get a string representation of this sequence.

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

getOriginalSequence

public Sequence getOriginalSequence()

Get the original sequence corresponding to this projected sequence.

Returns:

the original sequence

getSizeOfItemsetAt

public int getSizeOfItemsetAt(int index)

Return the size in terms of items of an itemset at a given position (overloaded).

Parameters:

index - the position of the itemset

Returns:

the number of items in that itemset

getItemAtInItemsetAt

public java.lang.Integer getItemAtInItemsetAt(int indexItem,
                                              int indexItemset)

Get an item at a given position inside a given itemset

Parameters:

indexItem - the position of the item

indexItemset - the position of the itemset

Returns:

the item.

getItemset

public java.util.List<java.lang.Integer> getItemset(int index)

Get the itemset at a given position

Parameters:

index - the position of the itemset

Returns:

the itemset

print

public void print()

Print this pseudo-sequence to System.out.

toString

public java.lang.String toString()

Get a string representation of this sequence.

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object