StatBean Name: ScatterplotMatrix

Purpose: - displays a matrix of 2-variable scatterplots for several numeric columns.

DataSource: Any.

Read/Write Properties

Name	Type	Description	Possible Values	Default Value
columnNames	String array	The names of the columns to be plotted.	One or more strings.	{""}
gap	double	The proportion of the plotting space left blank around each side of the cells of the plot.	0.0-0.25	0.1
labelColor	Color	The color of the variable labels.	Any valid Color.	Color.black
labelFont	Font	The font to be used for the variable labels.	Any Font.	"Serif",0,12
missingValueExclusion	String	The method for handling records which contain missing values.	"Columnwise","Casewise", "Tablewise"	"Columnwise"
smootherColor	Color	Color for drawing the smooth.	Any valid color.	Color.blue
smootherPercentage	int	Width of the smoother as a percentage of the number of observations.	1-99	50
smootherType	String	Type of smoother, if any, to be added to the plot.	"None", "Running Means", "Running Lines", "LOWESS", "Robust LOWESS"	"None"

Other properties are inherited from the java.awt.Canvas class and from the general GraphicalStatbean class.

Code Sample

//create a datasource bean
FileDataSource fileDataSource1 = new STATBEANS.FileDataSource();

//set the file name to be read
fileDataSource1.setFileName("c:\\statbeans\\samples\\cardata.txt");

//create a plot bean
ScatterplotMatrix scatterplotMatrix1 = new STATBEANS.ScatterplotMatrix();

//set the columns names
String[] temp = new String[4];
temp[0] = "mpg";
temp[1] = "horsepower";
temp[2] = "displace";
temp[3] = "weight";
scatterplotMatrix1.setColumnNames(temp);

//set smoother type
scatterplotMatrix1.setSmootherType("Robust Lowess");

//add plot
add(scatterplotMatrix1);

//make the plot a listener for changes in the FileDataSource bean
fileDataSource1.addDataChangeListener(scatterplotMatrix1.listenerForDataChange);

//instruct the fileDataSource bean to read the file
fileDataSource1.readData();