com.raghav.plot.XYSeriesDemo.java Source code

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Here is the source code for com.raghav.plot.XYSeriesDemo.java

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/*
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package com.raghav.plot;

/**
 *
 * @author raghav
 */
import org.apache.commons.math3.special.Erf;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

public class XYSeriesDemo extends ApplicationFrame {

    /**
     * A demonstration application showing an XY series containing a null value.
     *
     * @param title  the frame title.
     */
    public XYSeriesDemo(final String title) {

        super(title);
        final XYSeries series = new XYSeries("Random Data");
        //    float x=1;
        //    float y=(float)((Math.sqrt(2))*x);
        //    

        for (int i = 1; i < 200000; i++) {
            double x = (((double) (i)) / 1000);
            System.out.print("x = " + x);
            double xdb = 10 * (Math.log10(x));
            System.out.print("\t 10logx=" + xdb);

            double y = Erf.erfc(Math.sqrt(x));
            System.out.print("\t y=" + y);
            System.out.println("----------------------");
            series.add(xdb, y);
        }

        final XYSeriesCollection data = new XYSeriesCollection(series);
        final JFreeChart chart = ChartFactory.createXYLineChart("XY Series Demo", "X", "Y", data,
                PlotOrientation.VERTICAL, true, true, false);

        final ChartPanel chartPanel = new ChartPanel(chart);
        chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
        setContentPane(chartPanel);

    }

    // ****************************************************************************
    // * JFREECHART DEVELOPER GUIDE                                               *
    // * The JFreeChart Developer Guide, written by David Gilbert, is available   *
    // * to purchase from Object Refinery Limited:                                *
    // *                                                                          *
    // * http://www.object-refinery.com/jfreechart/guide.html                     *
    // *                                                                          *
    // * Sales are used to provide funding for the JFreeChart project - please    * 
    // * support us so that we can continue developing free software.             *
    // ****************************************************************************

    /**
     * Starting point for the demonstration application.
     *
     * @param args  ignored.
     */
    public static void main(final String[] args) {

        final XYSeriesDemo demo = new XYSeriesDemo("XY Series Demo");
        demo.pack();
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);

    }

}