package ca.pfv.spmf.algorithms.frequentpatterns.upgrowth_ihup;
/**
* This class represent an itemset and its exact utility as used by the UPGrowth algorithm.
*
* Copyright (c) 2014 Prashant Barhate
*
* 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 <http://www.gnu.org/licenses/>.
*
* @see AlgoUPGrowth
*/
public class Itemset {
private int[] itemset;
private int utility =0;
/**
* Constructor
* @param itemset the itemset
*/
public Itemset(int[] itemset) {
this.itemset = itemset;
}
/**
* Get the exact utility of this itemset
* @return the exat utility
*/
public int getExactUtility() {
return utility;
}
/**
* Increase the utility of this itemset.
* @param utility the amount of utility to be added (int).
*/
public void increaseUtility(int utility) {
this.utility += utility;
}
public Integer get(int pos) {
return itemset[pos];
}
public int size() {
return itemset.length;
}
}