public DataTable createWeightsTable() {
SimpleDataTable weightTable =
new SimpleDataTable("Hyperplane Model Weights", new String[] {"Attribute", "Weight"});
for (int j = 0; j < this.coefficientNames.length; j++) {
int nameIndex = weightTable.mapString(0, this.coefficientNames[j]);
weightTable.add(new SimpleDataTableRow(new double[] {nameIndex, this.coefficients[j]}));
}
return weightTable;
}
public static int fillDataTable(
SimpleDataTable dataTable,
Map<String, double[]> lastPopulation,
Population pop,
boolean drawDominated) {
lastPopulation.clear();
dataTable.clear();
int numberOfCriteria = 0;
for (int i = 0; i < pop.getNumberOfIndividuals(); i++) {
boolean dominated = false;
if (!drawDominated) {
for (int j = 0; j < pop.getNumberOfIndividuals(); j++) {
if (i == j) continue;
if (NonDominatedSortingSelection.isDominated(pop.get(i), pop.get(j))) {
dominated = true;
break;
}
}
}
if (drawDominated || (!dominated)) {
StringBuffer id = new StringBuffer(i + " (");
PerformanceVector current = pop.get(i).getPerformance();
numberOfCriteria = Math.max(numberOfCriteria, current.getSize());
double[] data = new double[current.getSize()];
for (int d = 0; d < data.length; d++) {
data[d] = current.getCriterion(d).getFitness();
if (d != 0) id.append(", ");
id.append(Tools.formatNumber(data[d]));
}
id.append(")");
dataTable.add(new SimpleDataTableRow(data, id.toString()));
double[] weights = pop.get(i).getWeights();
double[] clone = new double[weights.length];
System.arraycopy(weights, 0, clone, 0, weights.length);
lastPopulation.put(id.toString(), clone);
}
}
return numberOfCriteria;
}
public void startVisualization(Object id) {
double[] weights = lastPopulation.get(id);
SimpleDataTable dataTable =
new SimpleDataTable("Attribute Weights", new String[] {"Attribute", "Weight"});
int a = 0;
for (Attribute attribute : exampleSet.getAttributes()) {
dataTable.add(
new SimpleDataTableRow(
new double[] {dataTable.mapString(0, attribute.getName()), weights[a++]}));
}
Component visualizationComponent = new DataTableViewer(dataTable);
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
frame.getContentPane().setLayout(new BorderLayout());
frame
.getContentPane()
.add(new ExtendedJScrollPane(visualizationComponent), BorderLayout.CENTER);
frame.setSize(600, 400);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}