/*
* RapidMiner
*
* Copyright (C) 2001-2014 by RapidMiner and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapidminer.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*att2 > 50 and att1 * att2 < 80.
*
* @author Ingo Mierswa
*/
public class SimpleNonLinearClassificationFunction extends ClassificationFunction {
public double calculate(double[] att) throws FunctionException {
if (att.length < 2)
throw new FunctionException("Simple non linear classification function", "needs at least 2 attributes!");
if ((att[0] * att[1] > 50.0d) && (att[0] * att[1] < 80.0d))
return getLabel().getMapping().mapString("positive");
else
return getLabel().getMapping().mapString("negative");
}
@Override
public int getMinNumberOfAttributes() {
return 2;
}
}