/*
* 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.generator;
/** The label is positive if (att1*att1*att1*att1) > 100.
*
* @author Ingo Mierswa
* @version $Id: SimplePolynomialClassificationFunction.java,v 1.3 2008/05/09 19:22:51 ingomierswa Exp $
*/
public class SimplePolynomialClassificationFunction extends ClassificationFunction {
public double calculate(double[] att) throws FunctionException {
if (att.length < 1)
throw new FunctionException("Simple polynomial classification function", "needs at least one attribute!");
if ((att[0] * att[0] * att[0] * att[0]) > 100)
return getLabel().getMapping().mapString("positive");
else
return getLabel().getMapping().mapString("negative");
}
}