import java.util.*;

import org.jfree.chart.*;

import statgraphics.*;

import statgraphics.eda.*;

import static statgraphics.util.Argument.*;

import statgraphics.util.*;

/**

*

* <p>Example: class ScatterPlot.</p>

*/

public class ScatterPlotExample

{

public static void main(String[] args)

{

PlotFrame[] pf = new PlotFrame[4];

double xdata[][] = { {2, 5, 1, 3, 4, 1, 5, 3, 4, 2},

{2, 3, 4, 2, 5, 3, 4, 1, 3, 4} };

double[][] ydata = { {50, 57, 41, 54, 54, 38, 63, 48, 59, 46},

{39, 42, 37, 32, 42, 45, 32, 43, 45, 35} };

String[] dataNames = {"2004", "2005"};

ScatterPlot scatterPlot =

new ScatterPlot(dataNames, "Scatter Diagram",

"Number of Commercials", "Sales", xdata, ydata);

pf[0] = new PlotFrame("Scatter Plot I", scatterPlot.getPlot(),

500, 270);

double[] residuals = { -12, 15, -12, 18, -3, -3, -3, 9, -21, 12};

double[] index = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

String dataNames2 = "Residuals";

scatterPlot = new ScatterPlot(dataNames2, "Residual Plot", "Index",

"Residuals", index, residuals);

pf[1] = new PlotFrame("Linear Regression: Residual Plot I",

scatterPlot.getPlot(), 500, 270);

Hashtable argument = new Hashtable();

argument.put(DATA_NAMES, dataNames);

GraphicalAnalysis graphicalAnalysis =

new ScatterPlot(argument, xdata, ydata).graphicalAnalysis;

JFreeChart myPlot =

(JFreeChart) graphicalAnalysis.output.get("PLOT");

pf[2] = new PlotFrame("Scatter Plot II", myPlot, 500, 270);

argument.put(DATA_NAMES, dataNames2);

argument.put(TITLE, "Residual Plot");

argument.put(XLABEL, "Index");

argument.put(YLABEL, "Residuals");

graphicalAnalysis = new ScatterPlot(argument, index, residuals).

graphicalAnalysis;

pf[3] = new PlotFrame("Linear Regression: Residual Plot II",

graphicalAnalysis.getPlot(), 500, 270);

new PlotFrameFactory().putPlotFrame(pf);

}

}

Results:

See also:

Crosstabulations and Scatter Diagrams