javanpst.tests.scale.sukhatmeTest

Class SukhatmeTest

java.lang.Object

javanpst.tests.StatisticalTest

javanpst.tests.scale.sukhatmeTest.SukhatmeTest

public class SukhatmeTest
extends StatisticalTest

The Sukhatme test. Assuming the scale model (equal medians), this test can be employed to test whether the two distributions selected have equal scale parameter (with the null hypothesis of equality). This test assumes that the median of both populations is 0. Hence, samples' values can be arranged into negative and positive ones, to obtain a Mann-Whitney based statistic to test hypothesis of equal scale. An approximation to the Normal distribution is employed to compute asymptotic p-values.

Constructor Summary

Constructors

Constructor and Description
SukhatmeTest() Default builder
SukhatmeTest(DataTable newData) Builder.

Method Summary

Modifier and Type	Method and Description
void	clearData() Clears the data stored in the test
void	doTest() Perform the test
double	getDoublePValue() Get double tail p-value
double	getLeftPValue() Get left tail p-value
double	getRightPValue() Get right tail p-value
double	getTestStatistic() Get the test statistic
java.lang.String	printData() Prints the data stored in the test
java.lang.String	printReport() Prints a report with the results of the test
void	setData(DataTable newData) Sets data to test

Methods inherited from class javanpst.tests.StatisticalTest

isDataReady, isPerformed

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SukhatmeTest

public SukhatmeTest()

Default builder

SukhatmeTest

public SukhatmeTest(DataTable newData)

Builder. Load data to test.

Parameters:

newData - data to test.

Method Detail

clearData

public void clearData()

Clears the data stored in the test

Specified by:

clearData in class StatisticalTest

setData

public void setData(DataTable newData)

Sets data to test

Parameters:

newData - data to test.

doTest

public void doTest()

Perform the test

Specified by:

doTest in class StatisticalTest

getTestStatistic

public double getTestStatistic()

Get the test statistic

Returns:

Sukhatme statistic

getLeftPValue

public double getLeftPValue()

Get left tail p-value

Returns:

left tail p-value computed

getRightPValue

public double getRightPValue()

Get right tail p-value

Returns:

right tail p-value computed

getDoublePValue

public double getDoublePValue()

Get double tail p-value

Returns:

double tail p-value computed

printData

public java.lang.String printData()

Prints the data stored in the test

Specified by:

printData in class StatisticalTest

Returns:

Data stored

printReport

public java.lang.String printReport()

Prints a report with the results of the test

Specified by:

printReport in class StatisticalTest

Returns:

Output report