javanpst.tests.scale.klotzTest

Class KlotzTest

java.lang.Object

javanpst.tests.StatisticalTest

javanpst.tests.scale.klotzTest.KlotzTest

public class KlotzTest
extends StatisticalTest

The Klotz 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). The Klotz test uses the squares of the weights of the inverse-normal scores of van der Warden Normal Scores test for location. An approximation to the Normal distribution is employed to compute asymptotic p-values.

Constructor Summary

Constructors

Constructor and Description
KlotzTest() Default builder
KlotzTest(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	getPValue1() Get first sample p-value
double	getPValue2() Get second sample p-value
double	getTestStatistic1() Get test statistic associated to the first sample
double	getTestStatistic2() Get test statistic associated to the second sample
java.lang.String	printData() Prints the data stored in the test
java.lang.String	printReport() Prints a report with the results of the test
java.lang.String	printWeights() Prints the array of weights
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

KlotzTest

public KlotzTest()

Default builder

KlotzTest

public KlotzTest(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

getTestStatistic1

public double getTestStatistic1()

Get test statistic associated to the first sample

Returns:

normal Statistic of the first sample

getTestStatistic2

public double getTestStatistic2()

Get test statistic associated to the second sample

Returns:

normal Statistic of the second sample

getPValue1

public double getPValue1()

Get first sample p-value

Returns:

first sample p-value

getPValue2

public double getPValue2()

Get second sample p-value

Returns:

second sample p-value

printWeights

public java.lang.String printWeights()

Prints the array of weights

Returns:

string with the contents of the array

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