/*
* 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.transformation;
/**
* This class holds information about one eigenvector and eigenvalue.
*
* @author Ingo Mierswa
* @version $Id: Eigenvector.java,v 1.4 2008/05/09 19:22:52 ingomierswa Exp $
*/
public class Eigenvector implements ComponentVector {
private static final long serialVersionUID = -624000556228376910L;
private double eigenvalue;
private double[] eigenvector;
public Eigenvector(double[] eigenvector, double eigenvalue) {
this.eigenvector = eigenvector;
this.eigenvalue = eigenvalue;
}
public double[] getEigenvector() {
return this.eigenvector;
}
public double getEigenvalue() {
return this.eigenvalue;
}
public double[] getVector() {
return getEigenvector();
}
public int compareTo(ComponentVector o) {
return -1 * Double.compare(this.eigenvalue, o.getEigenvalue());
}
public boolean equals(Object o) {
if (!(o instanceof Eigenvector)) {
return false;
} else {
Eigenvector ev = (Eigenvector)o;
for (int i = 0; i < this.eigenvector.length; i++) {
if (this.eigenvector[i] != ev.eigenvector[i])
return false;
}
return this.eigenvalue == ev.eigenvalue;
}
}
public int hashCode() {
return Double.valueOf(eigenvalue).hashCode() ^ this.eigenvector.hashCode();
}
}