Java/Chart/Box and Whisker Chart
JFreeChart: Box And Whisker Demo
<source lang="java">
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2004, by Object Refinery Limited and Contributors. * * Project Info: http://www.jfree.org/jfreechart/index.html * * This library 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 2.1 of the License, or (at your option) any later version. * * This library 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 this * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, * Boston, MA 02111-1307, USA. * * [Java is a trademark or registered trademark of Sun Microsystems, Inc. * in the United States and other countries.] * * ---------------------- * BoxAndWhiskerDemo.java * ---------------------- * (C) Copyright 2003, 2004, by David Browning and Contributors. * * Original Author: David Browning (for the Australian Institute of Marine Science); * Contributor(s): David Gilbert (for Object Refinery Limited); * * $Id: BoxAndWhiskerDemo.java,v 1.12 2004/06/02 14:35:42 mungady Exp $ * * Changes * ------- * 21-Aug-2003 : Version 1, contributed by David Browning (for the Australian Institute of * Marine Science); * 27-Aug-2003 : Renamed BoxAndWhiskerCategoryDemo --> BoxAndWhiskerDemo, moved dataset creation * into the demo (DG); * */
package org.jfree.chart.demo; import java.awt.Font; import java.util.ArrayList; import java.util.List; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.CategoryAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.labels.BoxAndWhiskerToolTipGenerator; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.renderer.category.BoxAndWhiskerRenderer; import org.jfree.data.statistics.BoxAndWhiskerCategoryDataset; import org.jfree.data.statistics.DefaultBoxAndWhiskerCategoryDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; import org.jfree.util.Log; import org.jfree.util.LogContext; /**
* Demonstration of a box-and-whisker chart using a {@link CategoryPlot}.
*
* @author David Browning
*/
public class BoxAndWhiskerDemo extends ApplicationFrame {
/** Access to logging facilities. */
private static final LogContext LOGGER = Log.createContext(BoxAndWhiskerDemo.class);
/**
* Creates a new demo.
*
* @param title the frame title.
*/
public BoxAndWhiskerDemo(final String title) {
super(title);
final BoxAndWhiskerCategoryDataset dataset = createSampleDataset();
final CategoryAxis xAxis = new CategoryAxis("Type");
final NumberAxis yAxis = new NumberAxis("Value");
yAxis.setAutoRangeIncludesZero(false);
final BoxAndWhiskerRenderer renderer = new BoxAndWhiskerRenderer();
renderer.setFillBox(false);
renderer.setToolTipGenerator(new BoxAndWhiskerToolTipGenerator());
final CategoryPlot plot = new CategoryPlot(dataset, xAxis, yAxis, renderer);
final JFreeChart chart = new JFreeChart(
"Box-and-Whisker Demo",
new Font("SansSerif", Font.BOLD, 14),
plot,
true
);
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(450, 270));
setContentPane(chartPanel);
}
/**
* Creates a sample dataset.
*
* @return A sample dataset.
*/
private BoxAndWhiskerCategoryDataset createSampleDataset() {
final int seriesCount = 3;
final int categoryCount = 4;
final int entityCount = 22;
final DefaultBoxAndWhiskerCategoryDataset dataset
= new DefaultBoxAndWhiskerCategoryDataset();
for (int i = 0; i < seriesCount; i++) {
for (int j = 0; j < categoryCount; j++) {
final List list = new ArrayList();
// add some values...
for (int k = 0; k < entityCount; k++) {
final double value1 = 10.0 + Math.random() * 3;
list.add(new Double(value1));
final double value2 = 11.25 + Math.random(); // concentrate values in the middle
list.add(new Double(value2));
}
LOGGER.debug("Adding series " + i);
LOGGER.debug(list.toString());
dataset.add(list, "Series " + i, " Type " + j);
}
}
return dataset;
}
// ****************************************************************************
// * JFREECHART DEVELOPER GUIDE *
// * The JFreeChart Developer Guide, written by David Gilbert, is available *
// * to purchase from Object Refinery Limited: *
// * *
// * http://www.object-refinery.ru/jfreechart/guide.html *
// * *
// * Sales are used to provide funding for the JFreeChart project - please *
// * support us so that we can continue developing free software. *
// ****************************************************************************
/**
* For testing from the command line.
*
* @param args ignored.
*/
public static void main(final String[] args) {
//Log.getInstance().addTarget(new PrintStreamLogTarget(System.out));
final BoxAndWhiskerDemo demo = new BoxAndWhiskerDemo("Box-and-Whisker Chart Demo");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
</source>
