List of usage examples for org.apache.commons.math3.stat.inference ChiSquareTest chiSquareTestDataSetsComparison
public double chiSquareTestDataSetsComparison(long[] observed1, long[] observed2) throws DimensionMismatchException, NotPositiveException, ZeroException, MaxCountExceededException
From source file:org.apache.solr.client.solrj.io.eval.ChiSquareDataSetEvaluator.java
@Override public Object doWork(Object value1, Object value2) throws IOException { List<Number> listA = (List<Number>) value1; List<Number> listB = (List<Number>) value2; long[] sampleA = new long[listA.size()]; long[] sampleB = new long[listB.size()]; for (int i = 0; i < sampleA.length; i++) { sampleA[i] = listA.get(i).longValue(); }//from www . jav a2 s.c o m for (int i = 0; i < sampleB.length; i++) { sampleB[i] = listB.get(i).longValue(); } ChiSquareTest chiSquareTest = new ChiSquareTest(); double chiSquare = chiSquareTest.chiSquareDataSetsComparison(sampleA, sampleB); double p = chiSquareTest.chiSquareTestDataSetsComparison(sampleA, sampleB); Map<String, Number> m = new HashMap<>(); m.put("chisquare-statistic", chiSquare); m.put("p-value", p); return new Tuple(m); }