import static java.lang.System.out;

import java.util.*;

import javastat.*;

import javastat.inference.nonparametric.*;

import static javastat.util.Argument.*;

import static javastat.util.Output.*;

import javastat.util.*;

/**

*

* <p>Example: class SignRankTest.</p>

* <p>Data Source: Hollander, M. and Wolfe, D. A. (1999).

* Nonparametric Statistical Methods. John Wiley and Sons, INC., p. 41. </p>

*/

public class SignRankTestExample

{

public static void main(String arg[])

{

double[] testdata1 = {750, 1400, -300, 2400, -700, 800, 1300, -400,

1900, -1100, 1600, 300};

DataManager dm = new DataManager();

SignRankTest testclass1 = new SignRankTest(testdata1);

double tAlpha = testclass1.tAlpha;

double testStatistic = testclass1.testStatistic;

double pValue = testclass1.pValue;

SignRankTest testclass2 = new SignRankTest();

testStatistic = testclass2.testStatistic(0, testdata1);

tAlpha = testclass2.tAlpha(0.05, 0, testdata1);

pValue = testclass2.pValue(0, "greater", testdata1);

Hashtable argument1 = new Hashtable();

argument1.put(ALPHA, 0.02);

argument1.put(NULL_VALUE, 0);

argument1.put(SIDE, "greater");

StatisticalAnalysis testclass3 =

new SignRankTest(argument1, testdata1).statisticalAnalysis;

tAlpha = (Double) testclass3.output.get(TALPHA);

testStatistic = (Double) testclass3.output.get(TEST_STATISTIC);

pValue = (Double) testclass3.output.get(PVALUE);

Hashtable argument2 = new Hashtable();

SignRankTest testclass4 = new SignRankTest(argument2, null);

argument2.put(NULL_VALUE, 100.0);

testStatistic = testclass4.testStatistic(argument2, testdata1);

tAlpha = testclass4.tAlpha(argument2, testdata1);

argument2.put(SIDE, "equal");

pValue = testclass4.pValue(argument2, testdata1);

}

}

Results:

The selected constant based on non-null constructor from the table = 60.0

The test statistic based on non-null constructor = 62.5

The p-value based on non-null constructor = 0.039

{PVALUE=0.039, TALPHA=65.0, TEST_STATISTIC=62.5}

The selected constant based on null constructor from the table = 60.0

The test statistic based on null constructor = 59.5

The p-value based on null constructor = 0.13

{PVALUE=0.13, TALPHA=60.0, TEST_STATISTIC=59.5}