/*
* RapidMiner
*
* Copyright (C) 2001-2008 by Rapid-I and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapid-i.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.operator.features;
/**
* Ensures that every individual appears only once.
*
* @author Simon Fischer, Ingo Mierswa
* @version $Id: RedundanceRemoval.java,v 2.8 2006/03/21 15:35:42 ingomierswa
* Exp $
*/
public class RedundanceRemoval implements PopulationOperator {
/** The default implementation returns true for every generation. */
public boolean performOperation(int generation) {
return true;
}
public void operate(Population pop) {
for (int i = 0; i < pop.getNumberOfIndividuals() - 1; i++) {
for (int j = pop.getNumberOfIndividuals() - 1; j > i; j--) {
if (pop.get(i).equals(pop.get(j)))
pop.remove(j);
}
}
}
}