/*
* LearningCurve.java
* Copyright (C) 2007 University of Waikato, Hamilton, New Zealand
* @author Richard Kirkby (rkirkby@cs.waikato.ac.nz)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package tr.gov.ulakbim.jDenetX.evaluation;
import tr.gov.ulakbim.jDenetX.AbstractMOAObject;
import tr.gov.ulakbim.jDenetX.core.DoubleVector;
import tr.gov.ulakbim.jDenetX.core.Measurement;
import tr.gov.ulakbim.jDenetX.core.StringUtils;
import java.util.ArrayList;
import java.util.List;
public class LearningCurve extends AbstractMOAObject {
private static final long serialVersionUID = 1L;
protected List<String> measurementNames = new ArrayList<String>();
protected List<double[]> measurementValues = new ArrayList<double[]>();
public LearningCurve(String orderingMeasurementName) {
this.measurementNames.add(orderingMeasurementName);
}
public String getOrderingMeasurementName() {
return this.measurementNames.get(0);
}
public void insertEntry(LearningEvaluation learningEvaluation) {
Measurement[] measurements = learningEvaluation.getMeasurements();
Measurement orderMeasurement = Measurement.getMeasurementNamed(
getOrderingMeasurementName(), measurements);
if (orderMeasurement == null) {
throw new IllegalArgumentException();
}
DoubleVector entryVals = new DoubleVector();
for (Measurement measurement : measurements) {
entryVals.setValue(addMeasurementName(measurement.getName()),
measurement.getValue());
}
double orderVal = orderMeasurement.getValue();
int index = 0;
while ((index < this.measurementValues.size())
&& (orderVal > this.measurementValues.get(index)[0])) {
index++;
}
this.measurementValues.add(index, entryVals.getArrayRef());
}
public int numEntries() {
return this.measurementValues.size();
}
protected int addMeasurementName(String name) {
int index = this.measurementNames.indexOf(name);
if (index < 0) {
index = this.measurementNames.size();
this.measurementNames.add(name);
}
return index;
}
public String headerToString() {
StringBuilder sb = new StringBuilder();
boolean first = true;
for (String name : this.measurementNames) {
if (!first) {
sb.append(',');
} else {
first = false;
}
sb.append(name);
}
return sb.toString();
}
public String entryToString(int entryIndex) {
StringBuilder sb = new StringBuilder();
double[] vals = this.measurementValues.get(entryIndex);
for (int i = 0; i < this.measurementNames.size(); i++) {
if (i > 0) {
sb.append(',');
}
if ((i >= vals.length) || Double.isNaN(vals[i])) {
sb.append('?');
} else {
sb.append(Double.toString(vals[i]));
}
}
return sb.toString();
}
public void getDescription(StringBuilder sb, int indent) {
sb.append(headerToString());
for (int i = 0; i < numEntries(); i++) {
StringUtils.appendNewlineIndented(sb, indent, entryToString(i));
}
}
public double getMeasurement(int entryIndex, int measurementIndex) {
return this.measurementValues.get(entryIndex)[measurementIndex];
}
public String getMeasurementName(int measurementIndex) {
return this.measurementNames.get(measurementIndex);
}
}