javanpst.tests.bivariate.danielTrendTest

Class DanielTrendTest

java.lang.Object

javanpst.tests.StatisticalTest

javanpst.tests.bivariate.danielTrendTest.DanielTrendTest

public class DanielTrendTest
extends StatisticalTest

The Daniel Trend test. This test computes Spearman's correlation coefficient to measure association between bivariate samples. Two samples, with 3 o more values are needed. A exact p-value is computed if the size of the sample is equal or lower than 10. If the size is between 11 and 30, a quantile approximation is computed. Ties are broken arbitrarily. Furthermore, an asymptotic p-value, measuring positive, negative, and no dependence is computed for any sample size.

Constructor Summary

Constructors

Constructor and Description
DanielTrendTest() Default builder
DanielTrendTest(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	getExactPValue() Get exact p-value
double	getNegativeDependencePvalue() Get negative dependence p-value
double	getNoDependencePvalue() Get no dependence p-value
double	getPositiveDependencePvalue() Get positive dependence p-value
double	getR() Get R statistic (Spearman's correlation coefficient)
double	getZ() Get Z 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

DanielTrendTest

public DanielTrendTest()

Default builder

DanielTrendTest

public DanielTrendTest(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

getR

public double getR()

Get R statistic (Spearman's correlation coefficient)

Returns:

R statistic

getZ

public double getZ()

Get Z statistic

Returns:

Z statistic

getExactPValue

public double getExactPValue()

Get exact p-value

Returns:

exact p-value

getPositiveDependencePvalue

public double getPositiveDependencePvalue()

Get positive dependence p-value

Returns:

positive dependence p-value

getNegativeDependencePvalue

public double getNegativeDependencePvalue()

Get negative dependence p-value

Returns:

negative dependence p-value

getNoDependencePvalue

public double getNoDependencePvalue()

Get no dependence p-value

Returns:

negative dependence p-value

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