/*
* NeutralModel.java
*
* Copyright (c) 2002-2015 Alexei Drummond, Andrew Rambaut and Marc Suchard
*
* This file is part of BEAST.
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership and licensing.
*
* BEAST is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* BEAST 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with BEAST; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
package dr.evolution.wrightfisher;
/**
* A fitness function in which all molecular sequences have equal and optimal fitness.
*
* @author Alexei Drummond
*/
public class NeutralModel extends FitnessFunction {
public double getFitness(byte[] sequence) { return 1.0; }
public double getFitnessFactor(int pos, byte newState, byte oldState) { return 1.0; }
public double[][] getFitnessTable() {
return null;
}
public void initializeToFittest(byte[] genome) {
for (int i = 0; i < genome.length; i++) {
genome[i] = 0;
}
}
}