Java tutorial
/**************************************************** Statistics Online Computational Resource (SOCR) http://www.StatisticsResource.org All SOCR programs, materials, tools and resources are developed by and freely disseminated to the entire community. Users may revise, extend, redistribute, modify under the terms of the Lesser GNU General Public License as published by the Open Source Initiative http://opensource.org/licenses/. All efforts should be made to develop and distribute factually correct, useful, portable and extensible resource all available in all digital formats for free over the Internet. SOCR resources are distributed in the hope that they will be useful, but without any warranty; without any explicit, implicit or implied warranty for merchantability or fitness for a particular purpose. See the GNU Lesser General Public License for more details see http://opensource.org/licenses/lgpl-license.php. http://www.SOCR.ucla.edu http://wiki.stat.ucla.edu/socr It s Online, Therefore, It Exists! ****************************************************/ package edu.ucla.stat.SOCR.chart.demo; import java.beans.PropertyChangeListener; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.YIntervalRenderer; import org.jfree.data.xy.IntervalXYDataset; import edu.ucla.stat.SOCR.chart.ChartGenerator_JTable; import edu.ucla.stat.SOCR.chart.SuperYIntervalChart; import edu.ucla.stat.SOCR.chart.data.SimpleIntervalXYDataset2; /** * A simple demonstration application showing how to create a Y Interval Chart. */ public class YIntervalChartDemo1 extends SuperYIntervalChart implements PropertyChangeListener { public void doTest() { JFreeChart chart; ChartGenerator_JTable chartMaker = new ChartGenerator_JTable(); resetChart(); showMessageDialog(chartTitle + " doTest get called!"); int no_series = (dataTable.getColumnCount() - 2) / 2; int[][] pairs = new int[no_series][2]; for (int i = 0; i < no_series; i++) { pairs[i][0] = 2 * i; //column x pairs[i][1] = 2 * i + 1; //column y } chart = chartMaker.getYIntervalChart("YInterVal Chart", "X", "Y", dataTable, no_series, pairs, ""); chartPanel = new ChartPanel(chart, false); setChart(); } /** * Creates a new chart. * * @param dataset the dataset. * * @return The chart. */ protected JFreeChart createChart(IntervalXYDataset dataset) { JFreeChart chart = ChartFactory.createScatterPlot(chartTitle, // chart title domainLabel, // domain axis label rangeLabel, // range axis label dataset, // data PlotOrientation.VERTICAL, !legendPanelOn, // include legend true, false); XYPlot plot = chart.getXYPlot(); plot.setRenderer(new YIntervalRenderer()); setXSummary(dataset); return chart; } protected IntervalXYDataset createDataset(boolean isDemo) { if (isDemo) { return new SimpleIntervalXYDataset2(50); } else return super.createDataset(false); } }