/*
* DummyLikelihood.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.inference.model;
/**
* A class that always returns a log likelihood of 0 but contains models that would otherwise
* be unregistered with the MCMC. This is an ugly solution to a rare problem.
*
* @author Andrew Rambaut
*
* @version $Id: DummyLikelihood.java,v 1.3 2005/05/24 20:26:00 rambaut Exp $
*/
public class DummyLikelihood extends Likelihood.Abstract {
public DummyLikelihood(Model model) {
super(model);
}
// **************************************************************
// Likelihood IMPLEMENTATION
// **************************************************************
/**
* Overridden to always return false.
*/
protected boolean getLikelihoodKnown() {
return false;
}
/**
* Calculate the log likelihood of the current state.
* If all the statistics are true then it returns 0.0 otherwise -INF.
* @return the log likelihood.
*/
public double calculateLogLikelihood() {
return 0.0;
}
}