package chap3.java.science.data; import org.apache.commons.math3.stat.inference.TestUtils; public class ChiSquareTest { public static void main(String[] args){ long[] observed = {43, 21, 25, 42, 57, 59}; double[] expected = {99, 65, 79, 75, 87, 81}; ChiSquareTest test = new ChiSquareTest(); test.getChiSquare(observed, expected); } public void getChiSquare(long[] observed, double[] expected){ System.out.println(TestUtils.chiSquare(expected, observed));//t statistics System.out.println(TestUtils.chiSquareTest(expected, observed));//p value System.out.println(TestUtils.chiSquareTest(expected, observed, 0.05)); } }