StatBean Name: StemLeafDisplay

Purpose: Creates a stem-and-leaf display for a single column of numeric data.

DataSource: Any.

Read/Write Properties

Name	Type	Description	Possible Values	Default Value
depthCounts	boolean	Whether to add depth counts on the left of the plot.	true,false	true
flagOutsidePoints	boolean	Whether to add Hi and LO stems showing values unusually far from the others.	true,false	true
maximumLeavesOnStem	int	Maximum leaves before adding "...".	1+	70
maximumStems	int	Maximum number of stems in plot.	1+	15
minimumStems	int	Minimum number of stems in plot.	1+	10
tablewiseExclusion	boolean	Whether all rows of the data table containing a missing value in any column should be excluded from the plot.	true,false	false
xVariableName	String	The name of the column with data values to be plotted on the horizontal axis.	Any string.	"X"

Other Public Methods

Name	Description	Arguments	Return Value
int getNumberFarOutside()	Returns the number of far outside points.	None.	Number of data values more than 3.0 times the interquartile range from the box.
int getNumberOutside()	Returns the number of outside points.	None.	Number of data values more than 1.5 times the interquartile range from the box.
int getNumberOfStems()	Returns the number of stems.	None.	Number of stems.

Code Sample

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

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

//create a table bean
StemLeafDisplay stemleafdisplay1 = new STATBEANS.StemLeafDisplay();

//set the column to be tabulated
stemleafdisplay1.setXVariableName("strength");

//set the number of stems
stemleafdisplay1.setMinimumStems(5);
stemleafdisplay1.setMaximumStems(10);

//add the table to the application frame
add(stemleafdisplay1);

//make the table bean a listener
fileDataSource1.addDataChangeListener(stemleafdisplay1.listenerForDataChange);

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