Example usage for org.apache.commons.math3.stat.inference TestUtils pairedTTest

Introduction

In this page you can find the example usage for org.apache.commons.math3.stat.inference TestUtils pairedTTest.

Prototype

public static boolean pairedTTest(final double[] sample1, final double[] sample2, final double alpha)
        throws NullArgumentException, NoDataException, DimensionMismatchException, NumberIsTooSmallException,
        OutOfRangeException, MaxCountExceededException 

Source Link

Usage

From source file:iDynoOptimizer.MOEAFramework26.src.org.moeaframework.util.statistics.TwoSampleTTest.java

/**
 * {@inheritDoc}/*w  ww  .j  a  va2 s .c o m*/
 * 
 * @see TestUtils#tTest(double[], double[], double)
 * @see TestUtils#pairedTTest(double[], double[], double)
 */
@Override
public boolean test(double alpha) {
    List<double[]> categories = categorize();

    if (independent) {
        return TestUtils.tTest(categories.get(0), categories.get(1), alpha);
    } else {
        return TestUtils.pairedTTest(categories.get(0), categories.get(1), alpha);
    }
}

---

From source file:eu.crydee.alignment.aligner.ae.MetricsOneVsOneC.java

@Override
public void collectionProcessComplete() throws AnalysisEngineProcessException {
    try {/* ww  w .  j  a  v  a2s  . co m*/
        String template = IOUtils.toString(getClass()
                .getResourceAsStream("/eu/crydee/alignment/aligner/ae/" + "metrics-one-vs-one-template.html"));
        template = template.replace("@@TITLE@@",
                "Metrics comparator" + LocalDateTime.now().format(DateTimeFormatter.ISO_DATE_TIME));
        template = template.replace("@@LEFTALGO@@", leftAlgoName);
        template = template.replace("@@RIGHTALGO@@", rightAlgoName);
        StringBuilder sb = new StringBuilder();
        sb.append("<table class=\"table table-condensed\">\n").append("            <thead>\n")
                .append("                <tr>\n").append("                    <th>Document\\Metric</th>\n");
        for (String key : keys) {
            sb.append("                    <th colspan=\"2\">").append(methodsMetadata.get(key).getRight())
                    .append("</th>\n");
        }
        sb.append("                <tr>\n").append("            </thead>\n").append("            <tbody>\n")
                .append("                <tr>\n").append("                    <td>\n")
                .append("                        <strong>Total</strong>\n")
                .append("                    </td>\n");
        for (String key : keys) {
            SummaryStatistics ss1 = new SummaryStatistics(), ss2 = new SummaryStatistics();
            List<Pair<Double, Double>> column = results.column(key).values().stream().peek(p -> {
                ss1.addValue(p.getLeft());
                ss2.addValue(p.getRight());
            }).collect(Collectors.toList());
            boolean significant = TestUtils.pairedTTest(column.stream().mapToDouble(p -> p.getLeft()).toArray(),
                    column.stream().mapToDouble(p -> p.getRight()).toArray(), 0.05);
            double mean1 = ss1.getMean(), mean2 = ss2.getMean();
            boolean above = mean1 > mean2;
            String summary1 = String.format("%.3f", mean1) + "<small class=\"text-muted\">" + ""
                    + String.format("%.3f", ss1.getStandardDeviation()) + "</small>",
                    summary2 = String.format("%.3f", mean2) + "<small class=\"text-muted\">" + ""
                            + String.format("%.3f", ss2.getStandardDeviation()) + "</small>";
            sb.append("                    <td class=\"")
                    .append(significant ? (above ? "success" : "danger") : "warning").append("\">")
                    .append(summary1).append("</td>\n");
            sb.append("                    <td class=\"")
                    .append(significant ? (!above ? "success" : "danger") : "warning").append("\">")
                    .append(summary2).append("</td>\n");
        }
        sb.append("                </tr>\n");
        SortedSet<String> rows = new TreeSet<>(results.rowKeySet());
        for (String row : rows) {
            sb.append("                <tr>\n").append("                    <td>").append(row)
                    .append("</td>\n");
            for (String key : keys) {
                Pair<Double, Double> r = results.get(row, key);
                sb.append("                    <td>").append(String.format("%.3f", r.getLeft()))
                        .append("</td>\n").append("                    <td>")
                        .append(String.format("%.3f", r.getRight())).append("</td>\n");

            }
            sb.append("                </tr>\n");
        }
        sb.append("            </tbody>\n").append("        </table>");
        FileUtils.write(new File(htmlFilepath), template.replace("@@TABLE@@", sb.toString()),
                StandardCharsets.UTF_8);
    } catch (IOException ex) {
        logger.error("IO problem with the HTML output.");
        throw new AnalysisEngineProcessException(ex);
    }
}

---