/*
* TransformedParameter.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;
import dr.util.Transform;
/**
* @author Marc A. Suchard
*/
public class TransformedParameter extends Parameter.Abstract implements VariableListener {
public TransformedParameter(Parameter parameter, Transform transform) {
this(parameter, transform, false);
}
public TransformedParameter(Parameter parameter, Transform transform, boolean inverse) {
this.parameter = parameter;
this.transform = transform;
this.inverse = inverse;
this.parameter.addVariableListener(this);
}
public int getDimension() {
return parameter.getDimension();
}
protected void storeValues() {
parameter.storeParameterValues();
}
protected void restoreValues() {
parameter.restoreParameterValues();
}
protected void acceptValues() {
parameter.acceptParameterValues();
}
protected void adoptValues(Parameter source) {
parameter.adoptParameterValues(source);
}
private double transform(double value) {
if (inverse) {
return transform.inverse(value);
} else {
return transform.transform(value);
}
}
private double inverse(double value) {
return inverse ? transform.transform(value) : transform.inverse(value);
}
public double getParameterValue(int dim) {
return transform(parameter.getParameterValue(dim));
}
public void setParameterValue(int dim, double value) {
parameter.setParameterValue(dim, inverse(value));
}
public void setParameterValueQuietly(int dim, double value) {
parameter.setParameterValueQuietly(dim, inverse(value));
}
public void setParameterValueNotifyChangedAll(int dim, double value) {
parameter.setParameterValueNotifyChangedAll(dim, inverse(value));
}
public String getParameterName() {
if (getId() == null)
return "transformed." + parameter.getParameterName();
return getId();
}
public void addBounds(Bounds<Double> bounds) {
final int dim = bounds.getBoundsDimension();
final double[] lower = new double[dim];
final double[] upper = new double[dim];
for (int i = 0; i < dim; ++i) {
lower[i] = inverse(bounds.getLowerLimit(i));
upper[i] = inverse(bounds.getUpperLimit(i));
}
transformedBounds = new DefaultBounds(upper, lower);
// System.err.println("Started with:");
// for (int i = 0; i < dim; ++i) {
// System.err.print("\t" + bounds.getLowerLimit(i));
// }
// System.err.println("");
// for (int i = 0; i < dim; ++i) {
// System.err.print("\t" + bounds.getUpperLimit(i));
// }
// System.err.println("\n");
//
// System.err.println("Ended with:");
// for (int i = 0; i < dim; ++i) {
// System.err.print("\t" + transformedBounds.getLowerLimit(i));
// }
// System.err.println("");
// for (int i = 0; i < dim; ++i) {
// System.err.print("\t" + transformedBounds.getUpperLimit(i));
// }
// System.err.println("\n");
//
parameter.addBounds(transformedBounds);
// throw new RuntimeException("Should not call addBounds() on transformed parameter");
}
public Bounds<Double> getBounds() {
return transformedBounds;
// throw new RuntimeException("Should not call getBounds() on transformed parameter");
}
public void addDimension(int index, double value) {
throw new RuntimeException("Not yet implemented.");
}
public double removeDimension(int index) {
throw new RuntimeException("Not yet implemented.");
}
public void variableChangedEvent(Variable variable, int index, ChangeType type) {
// Propogate change up model graph
fireParameterChangedEvent(index, type);
}
private final Parameter parameter;
private final Transform transform;
private final boolean inverse;
private Bounds<Double> transformedBounds = null;
}