import javastat.inference.nonparametric.SignRankTest;

/**

*

* <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>

*/

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

1900, -1100, 1600, 300};

testclass1 = new SignRankTest(testdata1);

tAlpha = testclass1.tAlpha;

testStatistic = testclass1.testStatistic;

pValue = testclass1.pValue;

print("The test statistic (non-null constructor) = " + testStatistic);

print("The p-value (non-null constructor) = " + pValue);

testclass2 = new SignRankTest();

testStatistic = testclass2.testStatistic(0, testdata1);

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

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

print("The test statistic (null constructor) = " + testStatistic);

print("The p-value (null constructor) = " + pValue);

Results:

The test statistic based on non-null constructor = 62.5

The p-value based on non-null constructor = 0.078

The test statistic based on null constructor = 62.5

The p-value based on null constructor = 0.039