javanpst.tests.twoSample.medianTest

Class MedianTest

java.lang.Object

javanpst.tests.StatisticalTest

javanpst.tests.twoSample.medianTest.MedianTest

public class MedianTest
extends StatisticalTest

The median test This test can be applied to test the null hypotheses of equal medians between populations. Exact p-value is computed through U and V statistics (number of values below of the combined sample median). An asymptotic approximation to the normal distribution is also computed.

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
void	clearData() Clears the data stored in the test
void	doTest() Performs the test
double	getDoublePValue() Get double tail p-value
double	getExactDoublePValue() Get double tail exact p-value
double	getExactLeftPValue() Get left tail exact p-value
double	getExactRightPValue() Get right tail exact p-value
double	getLeftPValue() Get left tail p-value
double	getMedian() Get median of the combined sample
double	getRightPValue() Get right tail p-value
double	getU() Get U statistic
double	getV() Get V statistic
java.lang.String	printConfidenceInterval() Prints a confidence interval for the median difference
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

MedianTest

public MedianTest()

Default builder

MedianTest

public MedianTest(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()

Performs the test

Specified by:

doTest in class StatisticalTest

getU

public double getU()

Get U statistic

Returns:

U statistic

getV

public double getV()

Get V statistic

Returns:

V statistic

getMedian

public double getMedian()

Get median of the combined sample

Returns:

median value

getExactLeftPValue

public double getExactLeftPValue()

Get left tail exact p-value

Returns:

left tail p-value computed

getExactRightPValue

public double getExactRightPValue()

Get right tail exact p-value

Returns:

right tail p-value computed

getExactDoublePValue

public double getExactDoublePValue()

Get double tail exact p-value

Returns:

double tail p-value computed

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

printConfidenceInterval

public java.lang.String printConfidenceInterval()

Prints a confidence interval for the median difference

Returns:

string with the confidence interval

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