StatBean Name: SampleStatisticsTable

Purpose: Displays summary statistics for the data in one or more numeric columns.

DataSource: SampleStatistics.

Read/Write Properties

Name	Type	Description	Possible Values	Default Value
coefficientOfVariation	boolean	Whether to display the coefficient of variation.	true,false	false
geometricMean	boolean	Whether to display the sample geomtric mean.	true,false	false
interquartileRange	boolean	Whether to display the interquartile range.	true,false	false
kurtosis	boolean	Whether to display the sample kurtosis.	true,false	false
lowerQuartile	boolean	Whether to display the lower quartile.	true,false	false
maximum	boolean	Whether to display the sample maximum.	true,false	true
mean	boolean	Whether to display the sample mean.	true,false	true
median	boolean	Whether to display the sample median.	true,false	false
minimum	boolean	Whether to display the sample minimum.	true,false	true
mode	boolean	Whether to display the sample mode.	true,false	false
range	boolean	Whether to display the sample range.	true,false	false
sampleSize	boolean	Whether to display the sample size.	true,false	true
showColumnNames	boolean	Whether to include column names at the top of the table.	true,false	true
skewness	boolean	Whether to display the sample skewness.	true,false	false
standardDeviation	boolean	Whether to display the sample standard deviation.	true,false	true
standardError	boolean	Whether to display the standard error of the mean.	true,false	false
standardizedSkewness	boolean	Whether to display the standardized skewness.	true,false	false
standardizedKurtosis	boolean	Whether to display the standardized kurtosis.	true,false	false
total	boolean	Whether to display the sample sum.	true,false	false
upperQuartile	boolean	Whether to display the upper quartile.	true,false	false
variance	boolean	Whether to display the sample variance.	true,false	false

Other properties are inherited from the java.awt.Panel class and from the general TabularStatbean class.

Code Sample

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

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

//create a samplestatistics bean
sampleStatistics1 = new STATBEANS.SampleStatistics();

//set the column names for computing statistics
java.lang.String[] tempString = new java.lang.String[3];
tempString[0] = new java.lang.String("mpg");
tempString[1] = new java.lang.String("weight");
tempString[2] = new java.lang.String("horsepower");
sampleStatistics1.setColumnNames(tempString);

//create a table bean
sampleStatisticsTable1 = new STATBEANS.SampleStatisticsTable();

//define any non-default statistics to be included in the table
sampleStatisticsTable1.setMedian(true);
sampleStatisticsTable1.setVariance(true);
sampleStatisticsTable1.setKurtosis(true);
sampleStatisticsTable1.setCoefficientOfVariation(true);
sampleStatisticsTable1.setRange(true);
sampleStatisticsTable1.setMode(true);
sampleStatisticsTable1.setSkewness(true);

//add the table to the display panel
add(sampleStatisticsTable1);

//register the calculation StatBean as a listener to the datasource
fileDataSource1.addDataChangeListener(sampleStatistics1.listenerForDataChange;

//register the table StatBean as a listener to the calculation StatBean
sampleStatistics1.addDataChangeListener(sampleStatisticsTable1.listenerForDataChange);

//read the file
fileDataSource1.readData();

//notify all listeners
fileDataSource1.updateListeners();