/*
 * @(#)MVDDemo.java		0.0.0 99/07/28
 *
 * Copyright (c) 1999 by Willie Wheeler.  All rights reserved.
 */
package stats.demos;

import java.text.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import stats.*;

/**
 * @version	0.0.0 07/28/99
 * @author	Willie Wheeler
 */
public class MVDDemo extends JApplet implements TableModelListener {

    protected static NumberFormat	nf = NumberFormat.getNumberInstance();
    static {
	nf.setMinimumFractionDigits(2);
	nf.setMaximumFractionDigits(2);
    }

    protected MVDTableModel		model;

    public void init() {
	JDesktopPane desktop = new JDesktopPane();
	setContentPane(desktop);

	// Independent variables.
	Vector independents = new Vector();
	independents.add(new TextVariable("Sex", new String[] {
	    "Male", "Female" }));
	independents.add(new TextVariable("Income", new String[] {
	    "Low", "Medium", "High" }));
	independents.add(new TextVariable("Happiness", new String[] {
	    "Low", "Medium", "High" }));

	// Dependent variables.
	Vector dependents = new Vector();
	dependents.add(new IntegralVariable("Frequency"));
	dependents.add(new ContinuousVariable("Estimate"));

	// Model.
	model = new MVDTableModel(independents, dependents);
	model.addTableModelListener(this);

	// JTable.
	JTable table = new JTable(model);

	// JInternalFrame.
	JInternalFrame frame = new JInternalFrame("MVDTableModel",
						  true, true, true, true);
	frame.getContentPane().add(new JScrollPane(table));
	frame.setBounds(10, 10, 300, 300);
	desktop.add(frame);
    }

    public void tableChanged(TableModelEvent e) {

	// Fr(Happiness | Sex, Income).
	double[][] dists =
	    model.getDistributions(0, new int[] { 2 }, new int[] { 0, 1 });
	for (int i = 0; i < dists.length; i++) {
	    for (int j = 0; j < dists[0].length; j++) {
		System.out.print(nf.format(dists[i][j]) + " ");
	    }
	    System.out.println();
	}
	System.out.println("-----");
    }
}