Example usage for org.apache.commons.math3.stat.inference ChiSquareTest ChiSquareTest

List of usage examples for org.apache.commons.math3.stat.inference ChiSquareTest ChiSquareTest

Introduction

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

Prototype

public ChiSquareTest() 

Source Link

Document

Construct a ChiSquareTest

Usage

From source file:info.rmarcus.birkhoffvonneumann.ChiSquaredTest.java

public static void testMethod(SamplingAlgorithm samp, int n, int samples) throws BVNException {
    double[][] bistoc = MatrixUtils.uniformBistoc(n);

    long[] classes = new long[factorial(bistoc.length)];

    BVNDecomposer bvn = new BVNDecomposer();
    bvn.setSamplingAlgorithm(samp);//from  w  w w .  j ava  2 s  . co  m
    Random r = new Random(42);

    for (int i = 0; i < samples; i++) {
        int[] p = CoeffAndMatrix.asFlatPerm(bvn.sample(r, bistoc));
        classes[inv(p)]++;
    }

    double[] expected = new double[classes.length];
    for (int i = 0; i < expected.length; i++)
        expected[i] = (double) classes.length / (double) samples;

    ChiSquareTest chiT = new ChiSquareTest();
    double testStat = chiT.chiSquare(expected, classes);

    ChiSquaredDistribution chi = new ChiSquaredDistribution(classes.length - 1);
    System.out.println(Arrays.toString(classes));
    System.out.println(chi.cumulativeProbability(testStat) + "\t" + testStat);

}

From source file:dp2.Avaliador.java

private static double chi_quad(int TP, int FP) {
    // S  preciso isso para calcular via funo pronta!
    long[][] n = new long[2][2];
    n[0][0] = TP;// w w  w .j a v a2  s.  com
    n[1][0] = D.numeroExemplosPositivo - n[0][0];
    n[0][1] = FP;
    n[1][1] = D.numeroExemplosNegativo - n[0][1];

    ChiSquareTest chiTest = new ChiSquareTest();
    double chi_quad = chiTest.chiSquare(n);
    // System.out.println("Chi_quad: " + chi + "/" + chi_quad);
    // System.out.println("chi_quad: " + chi_quad);

    return chi_quad;
}

From source file:dp2.Avaliador.java

private static double p_value(int TP, int FP) {
    // S  preciso isso para calcular via funo pronta!
    long[][] n = new long[2][2];
    n[0][0] = TP;//from   ww  w . java2 s  . com
    n[1][0] = D.numeroExemplosPositivo - n[0][0];
    n[0][1] = FP;
    n[1][1] = D.numeroExemplosNegativo - n[0][1];
    ChiSquareTest chiTest = new ChiSquareTest();
    // Returns the observed significance level, or p-value, associated with
    // a chi-square test of independence based on the input counts array,
    // viewed as a two-way table.
    double p_value = chiTest.chiSquareTest(n);
    // System.out.println("pvalue: " + p_value);
    return p_value;
}

From source file:edu.brandeis.wisedb.scheduler.experiments.SkewDistributionExperiment.java

public static void calculateBurn(int samples) throws Exception {
    TightenableSLA sla = PercentSLA.nintyTenSLA();
    //TightenableSLA sla = new SimpleLatencyModelSLA(9 * 60 * 1000, 1);
    //TightenableSLA sla = PerQuerySLA.getLatencyTimesN(2.0);
    //TightenableSLA sla = new AverageLatencyModelSLA(7 * 60 * 1000, 1);
    QueryTimePredictor qtp = new QueryTimePredictor();

    File f = new File("distSkew.csv");
    if (f.exists())
        f.delete();//  w  ww  .  java  2s . c o  m

    try (Trainer t = new Trainer("distSkew.csv", sla)) {
        t.train(2000, 12);
    }

    DTSearcher dt = new DTSearcher("distSkew.csv", qtp, sla);
    AStarGraphSearch astar = new AStarGraphSearch(new UnassignedQueryTimeHeuristic(qtp), sla, qtp);
    //FirstFitDecreasingGraphSearch astar = new FirstFitDecreasingGraphSearch(sla, qtp);

    ChiSquareTest cst = new ChiSquareTest();
    ChiSquaredDistribution cqd = new ChiSquaredDistribution(qtp.QUERY_TYPES.length - 1);
    double[] expceted = Arrays.stream(qtp.QUERY_TYPES).mapToDouble(i -> 20.0 / (qtp.QUERY_TYPES.length))
            .toArray();

    System.out.println("Chi\tDT\tOpt");

    for (int i = 0; i < samples; i++) {
        Set<ModelQuery> smp = ModelWorkloadGenerator.randomQueries(20);

        // reject samples that don't have at least one of each query type
        long repr = smp.stream().mapToInt(q -> q.getType()).distinct().count();
        if (repr != qtp.QUERY_TYPES.length) {
            i--;
            continue;
        }

        Map<Integer, List<ModelQuery>> groups = smp.stream().collect(Collectors.groupingBy(q -> q.getType()));

        long obs[] = Arrays.stream(qtp.QUERY_TYPES).mapToLong(v -> groups.get(v).size()).toArray();

        double chi = cst.chiSquare(expceted, obs);
        chi = cqd.cumulativeProbability(chi);

        Cost dtCost = dt.getCostForQueries(smp, sla);
        Cost optCost = astar.getCostForQueries(smp, sla);

        System.out.println(chi + "\t" + dtCost.getTotalCost() + "\t" + optCost.getTotalCost());
    }

}

From source file:info.rmarcus.birkhoffvonneumann.ChiSquaredTest.java

public static void testMethodEachPos(SamplingAlgorithm samp, int n, int samples) throws BVNException {
    double[][] bistoc = MatrixUtils.uniformBistoc(n);

    long[] classes = new long[bistoc.length * bistoc.length];

    BVNDecomposer bvn = new BVNDecomposer();
    bvn.setSamplingAlgorithm(samp);//from ww  w  .  j ava  2s .  c  om
    Random r = new Random(42);

    for (int i = 0; i < samples; i++) {
        Collection<Swap> p = CoeffAndMatrix.asSwaps(bvn.sample(r, bistoc));
        for (Swap s : p) {
            classes[s.getOriginalPosition() * bistoc.length + s.getNewPosition()]++;
        }
    }

    double[] expected = new double[classes.length];
    for (int i = 0; i < expected.length; i++)
        expected[i] = (double) classes.length / (double) samples;

    ChiSquareTest chiT = new ChiSquareTest();
    double testStat = chiT.chiSquareTest(expected, classes);

    System.out.println(testStat + " " + Arrays.toString(classes));

}

From source file:edu.umich.eecs.rtcl.lp_doctor.utilities.MathTools.java

private static double getPValue(SparseArray<Double> mobility, SparseArray<Integer> appHistogram,
        int currentPlace) {

    double[] expected = new double[mobility.size()];
    long[] observed = new long[mobility.size()];
    long[] toBeObserved = new long[mobility.size()];

    //nothing there, for bootstrapping
    if (mobility.size() < 2) {
        return 1;
    }/*from  ww w .j av  a2  s . c  o  m*/

    for (int index = 0; index < mobility.size(); index++) {
        int placeID = mobility.keyAt(index);
        double probability = mobility.get(placeID);
        int numVisits = appHistogram.get(placeID, 0);// no visits if place not in histogram
        expected[index] = probability;
        observed[index] = numVisits;
        toBeObserved[index] = numVisits;
        if (placeID == currentPlace) {
            toBeObserved[index]++; //to be observed?
        }
        Util.Log(Util.SESSION_TAG, "place:\t" + placeID + "\texp:\t" + probability + "\tobs:\t" + numVisits);
    }
    double pValueOld = new ChiSquareTest().chiSquareTest(expected, observed);
    double pValueNew = new ChiSquareTest().chiSquareTest(expected, toBeObserved); //automatic normalization

    Util.Log(Util.SESSION_TAG, pValueOld + "\t" + Arrays.toString(expected) + "\t" + Arrays.toString(observed));
    Util.Log(Util.SESSION_TAG, pValueNew + "\t" + Arrays.toString(expected) + "\t" + Arrays.toString(observed));
    return pValueNew;
}

From source file:be.uclouvain.mlg.jForest.importance.external.permutation.ChisqOnTwoConfusionTables.java

@Override
public double[] getImportances() {
    double[] res = new double[nfeat];
    ChiSquareTest x = new ChiSquareTest();

    for (int i = 0; i < nfeat; i++) {

        if (returnPval) {
            res[i] = x.chiSquareTest(sum[i]);
        } else {/*from  ww w .  j  a  va2s. c o  m*/
            res[i] = x.chiSquare(sum[i]);
        }
    }
    return res;
}

From source file:io.woolford.processors.nifibenford.BenfordsLaw.java

@Override
public void onTrigger(final ProcessContext context, final ProcessSession session) throws ProcessException {
    FlowFile flowFile = session.get();//from  w  ww . j ava2  s .  co  m
    if (flowFile == null) {
        return;
    }

    InputStream inputStream = session.read(flowFile);
    String input = new BufferedReader(new InputStreamReader(inputStream)).lines()
            .collect(Collectors.joining("\n"));

    // TODO: since the values returned by Benford's array don't ever change, these could be hard-coded rather than calling a function each time.
    double[] benfordsArray = getBenfordsArray();
    long[] firstDigitArray = getFirstDigitArray(input);

    long sampleSize = LongStream.of(firstDigitArray).sum();

    ChiSquareTest chiSquareTest = new ChiSquareTest();
    Boolean suspect = chiSquareTest.chiSquareTest(benfordsArray, firstDigitArray,
            context.getProperty(ALPHA).asDouble());

    //TODO: don't perform the chi-squared test if the sample is too small
    if (sampleSize < context.getProperty(MIN_SAMPLE).asLong()) {
        session.transfer(flowFile, INSUFFICIENT_SAMPLE);
    } else if (suspect) {
        session.transfer(flowFile, NON_CONFORMING);
    } else {
        session.transfer(flowFile, CONFORMING);
    }

}

From source file:ChiSquareCalculator.java

ChiSquareCalculator() {
    final JFrame jfrm = new JFrame("Chi Square Calculator");
    jfrm.setSize(400, 550);//from ww  w. j av  a 2  s.  c  o m
    jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    jfrm.setResizable(false);

    // panel 1
    JPanel pn1 = new JPanel();
    pn1.setOpaque(true);
    pn1.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(), "2 x 2"));

    JLabel jlab1 = new JLabel("class 1");
    JLabel jlab2 = new JLabel("class 2");
    JLabel jlab3 = new JLabel("case");
    JLabel jlab4 = new JLabel("control");

    jtf1 = new JTextField();
    jtf2 = new JTextField();
    jtf3 = new JTextField();
    jtf4 = new JTextField();

    // pn1 layout all
    GridBagLayout CalLayout1 = new GridBagLayout();
    GridBagConstraints gbc1 = new GridBagConstraints();
    pn1.setLayout(CalLayout1);
    gbc1.weightx = 1.0; //default 0.0
    gbc1.weighty = 1.0; //default 0.0      
    gbc1.insets = new Insets(4, 4, 4, 4); // Add some space
    gbc1.fill = GridBagConstraints.BOTH;

    gbc1.gridwidth = 1;

    gbc1.gridx = 1;
    gbc1.gridy = 0;
    CalLayout1.setConstraints(jlab1, gbc1);

    gbc1.gridx = 2;
    gbc1.gridy = 0;
    CalLayout1.setConstraints(jlab2, gbc1);

    gbc1.gridx = 0;
    gbc1.gridy = 1;
    CalLayout1.setConstraints(jlab3, gbc1);

    gbc1.gridx = 1;
    gbc1.gridy = 1;
    CalLayout1.setConstraints(jtf1, gbc1);

    gbc1.gridx = 2;
    gbc1.gridy = 1;
    CalLayout1.setConstraints(jtf2, gbc1);

    gbc1.gridx = 0;
    gbc1.gridy = 2;
    CalLayout1.setConstraints(jlab4, gbc1);

    gbc1.gridx = 1;
    gbc1.gridy = 2;
    CalLayout1.setConstraints(jtf3, gbc1);

    gbc1.gridx = 2;
    gbc1.gridy = 2;
    CalLayout1.setConstraints(jtf4, gbc1);

    pn1.add(jlab1);
    pn1.add(jlab2);
    pn1.add(jlab3);
    pn1.add(jlab4);
    pn1.add(jtf1);
    pn1.add(jtf2);
    pn1.add(jtf3);
    pn1.add(jtf4);

    // panel 2
    JPanel pn2 = new JPanel();
    pn2.setOpaque(true);
    pn2.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(), "2 x 3"));

    JLabel jlab5 = new JLabel("class 1");
    JLabel jlab6 = new JLabel("class 2");
    JLabel jlab7 = new JLabel("class 3");
    JLabel jlab8 = new JLabel("case");
    JLabel jlab9 = new JLabel("control");

    jtf5 = new JTextField();
    jtf6 = new JTextField();
    jtf7 = new JTextField();
    jtf8 = new JTextField();
    jtf9 = new JTextField();
    jtf10 = new JTextField();

    // pn2 layout all
    GridBagLayout CalLayout2 = new GridBagLayout();
    GridBagConstraints gbc2 = new GridBagConstraints();
    pn2.setLayout(CalLayout2);
    gbc2.weightx = 1.0; //default 0.0
    gbc2.weighty = 1.0; //default 0.0      
    gbc2.insets = new Insets(4, 4, 4, 4); // Add some space
    gbc2.fill = GridBagConstraints.BOTH;

    gbc2.gridwidth = 1;

    gbc2.gridx = 1;
    gbc2.gridy = 0;
    CalLayout2.setConstraints(jlab5, gbc2);

    gbc2.gridx = 2;
    gbc2.gridy = 0;
    CalLayout2.setConstraints(jlab6, gbc2);

    gbc2.gridx = 3;
    gbc2.gridy = 0;
    CalLayout2.setConstraints(jlab7, gbc2);

    gbc2.gridx = 0;
    gbc2.gridy = 1;
    CalLayout2.setConstraints(jlab8, gbc2);

    gbc2.gridx = 1;
    gbc2.gridy = 1;
    CalLayout2.setConstraints(jtf5, gbc2);

    gbc2.gridx = 2;
    gbc2.gridy = 1;
    CalLayout2.setConstraints(jtf6, gbc2);

    gbc2.gridx = 3;
    gbc2.gridy = 1;
    CalLayout2.setConstraints(jtf7, gbc2);

    gbc2.gridx = 0;
    gbc2.gridy = 2;
    CalLayout2.setConstraints(jlab9, gbc2);

    gbc2.gridx = 1;
    gbc2.gridy = 2;
    CalLayout2.setConstraints(jtf8, gbc2);

    gbc2.gridx = 2;
    gbc2.gridy = 2;
    CalLayout2.setConstraints(jtf9, gbc2);

    gbc2.gridx = 3;
    gbc2.gridy = 2;
    CalLayout2.setConstraints(jtf10, gbc2);

    pn2.add(jlab5);
    pn2.add(jlab6);
    pn2.add(jlab7);
    pn2.add(jlab8);
    pn2.add(jlab9);
    pn2.add(jtf5);
    pn2.add(jtf6);
    pn2.add(jtf7);
    pn2.add(jtf8);
    pn2.add(jtf9);
    pn2.add(jtf10);

    // panel 3      
    JPanel pn3 = new JPanel();
    pn3.setOpaque(true);
    pn3.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(), "statistic"));

    JLabel jlab10 = new JLabel("chi-square");
    JLabel jlab11 = new JLabel("degree of freedom");

    jtf11 = new JTextField();
    jtf12 = new JTextField();

    GridBagLayout CalLayout3 = new GridBagLayout();
    GridBagConstraints gbc3 = new GridBagConstraints();
    pn3.setLayout(CalLayout3);
    gbc3.weightx = 1.0; //default 0.0
    gbc3.weighty = 1.0; //default 0.0      
    gbc3.insets = new Insets(4, 4, 4, 4); // Add some space
    gbc3.fill = GridBagConstraints.BOTH;

    gbc3.gridwidth = 1;

    gbc3.gridx = 0;
    gbc3.gridy = 0;
    CalLayout3.setConstraints(jlab10, gbc3);

    gbc3.gridwidth = 3;

    gbc3.gridx = 1;
    gbc3.gridy = 0;
    CalLayout3.setConstraints(jtf11, gbc3);

    gbc3.gridwidth = 2;

    gbc3.gridx = 0;
    gbc3.gridy = 1;
    CalLayout3.setConstraints(jlab11, gbc3);

    gbc3.gridx = 2;
    gbc3.gridy = 1;
    CalLayout3.setConstraints(jtf12, gbc3);

    pn3.add(jlab10);
    pn3.add(jlab11);
    pn3.add(jtf11);
    pn3.add(jtf12);

    JPanel pn4 = new JPanel();
    pn4.setOpaque(true);
    pn4.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(), "result"));

    JLabel jlab12 = new JLabel("p-value");
    final JLabel jlab13 = new JLabel("odds ratio");
    final JLabel jlab14 = new JLabel("standard error");
    final JLabel jlab15 = new JLabel("confidence interval 95%");

    jtf13 = new JTextField();
    jtf14 = new JTextField();
    jtf15 = new JTextField();
    jtf16 = new JTextField();
    jtf17 = new JTextField();

    jlab13.setEnabled(false);
    jlab14.setEnabled(false);
    jlab15.setEnabled(false);
    jtf14.setEnabled(false);
    jtf15.setEnabled(false);
    jtf16.setEnabled(false);
    jtf17.setEnabled(false);

    JButton jbtn1 = new JButton("Run 2x2");
    jbtn1.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            long number1, number2, number3, number4;
            try {
                number1 = Long.parseLong(jtf1.getText());
                number2 = Long.parseLong(jtf2.getText());
                number3 = Long.parseLong(jtf3.getText());
                number4 = Long.parseLong(jtf4.getText());
            } catch (Exception ne) {
                JOptionPane.showMessageDialog(jfrm, "Error: Bad input, only integer is acceptable!");
                return;
            }

            long[][] obs = new long[2][2];

            obs[0][0] = number1;
            obs[0][1] = number2;
            obs[1][0] = number3;
            obs[1][1] = number4;

            ChiSquareTest mychiSquare = new ChiSquareTest();

            double stats = mychiSquare.chiSquare(obs);
            jtf11.setText(String.valueOf(stats));
            jtf12.setText(String.valueOf(1));

            double pvalue = mychiSquare.chiSquareTest(obs);
            jtf13.setText(String.valueOf(pvalue));

            jtf5.setText("");
            jtf6.setText("");
            jtf7.setText("");
            jtf8.setText("");
            jtf9.setText("");
            jtf10.setText("");

            jlab13.setEnabled(true);
            jlab14.setEnabled(true);
            jlab15.setEnabled(true);
            jtf14.setEnabled(true);
            jtf15.setEnabled(true);
            jtf16.setEnabled(true);
            jtf17.setEnabled(true);

            double or = (double) (number2 * number3) / (number1 * number4);
            double se = Math.sqrt(
                    (double) 1 / number1 + (double) 1 / number2 + (double) 1 / number3 + (double) 1 / number4);
            double logOR = Math.log(or);
            double logU95 = logOR + 1.96 * se;
            double logL95 = logOR - 1.96 * se;
            double U95 = Math.exp(logU95);
            double L95 = Math.exp(logL95);

            final java.text.DecimalFormat mydf = new java.text.DecimalFormat("0.000000");

            jtf14.setText(String.valueOf(or));
            jtf15.setText(String.valueOf(se));
            jtf16.setText(String.valueOf(mydf.format(L95)));
            jtf17.setText(String.valueOf(mydf.format(U95)));

        }
    });

    JButton jbtn2 = new JButton("Run 2x3");
    jbtn2.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            long number1, number2, number3, number4, number5, number6;
            try {
                number1 = Long.parseLong(jtf5.getText());
                number2 = Long.parseLong(jtf6.getText());
                number3 = Long.parseLong(jtf7.getText());
                number4 = Long.parseLong(jtf8.getText());
                number5 = Long.parseLong(jtf9.getText());
                number6 = Long.parseLong(jtf10.getText());
            } catch (Exception ne) {
                JOptionPane.showMessageDialog(jfrm, "Error: Bad input, only integer is acceptable!");
                return;
            }

            long[][] obs = new long[2][3];

            obs[0][0] = number1;
            obs[0][1] = number2;
            obs[0][2] = number3;
            obs[1][0] = number4;
            obs[1][1] = number5;
            obs[1][2] = number6;

            ChiSquareTest mychiSquare = new ChiSquareTest();

            double stats = mychiSquare.chiSquare(obs);
            jtf11.setText(String.valueOf(stats));
            jtf12.setText(String.valueOf(2));

            double pvalue = mychiSquare.chiSquareTest(obs);
            jtf13.setText(String.valueOf(pvalue));

            jtf1.setText("");
            jtf2.setText("");
            jtf3.setText("");
            jtf4.setText("");
            jtf14.setText("");
            jtf15.setText("");
            jtf16.setText("");
            jtf17.setText("");

            jlab13.setEnabled(false);
            jlab14.setEnabled(false);
            jlab15.setEnabled(false);
            jtf14.setEnabled(false);
            jtf15.setEnabled(false);
            jtf16.setEnabled(false);
            jtf17.setEnabled(false);

        }
    });

    JButton jbtn3 = new JButton("Run Statistic");
    jbtn3.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            double stat, df;
            try {
                stat = Double.parseDouble(jtf11.getText());
                df = Double.parseDouble(jtf12.getText());
            } catch (Exception ne) {
                JOptionPane.showMessageDialog(jfrm, "Error: Bad input, only number is acceptable!");
                return;
            }
            ChiSquaredDistribution distribution = new ChiSquaredDistribution(df);
            double pvalue = 1 - distribution.cumulativeProbability(stat);
            jtf13.setText(String.valueOf(pvalue));

            jtf1.setText("");
            jtf2.setText("");
            jtf3.setText("");
            jtf4.setText("");
            jtf5.setText("");
            jtf6.setText("");
            jtf7.setText("");
            jtf8.setText("");
            jtf9.setText("");
            jtf10.setText("");
            jtf14.setText("");
            jtf15.setText("");
            jtf16.setText("");
            jtf17.setText("");

            jlab13.setEnabled(false);
            jlab14.setEnabled(false);
            jlab15.setEnabled(false);
            jtf14.setEnabled(false);
            jtf15.setEnabled(false);
            jtf16.setEnabled(false);
            jtf17.setEnabled(false);
        }
    });

    JButton jbtn4 = new JButton("clear");
    jbtn4.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            jtf1.setText("");
            jtf2.setText("");
            jtf3.setText("");
            jtf4.setText("");
            jtf5.setText("");
            jtf6.setText("");
            jtf7.setText("");
            jtf8.setText("");
            jtf9.setText("");
            jtf10.setText("");
            jtf11.setText("");
            jtf12.setText("");
            jtf13.setText("");
            jtf14.setText("");
            jtf15.setText("");
            jtf16.setText("");
            jtf17.setText("");

            jlab13.setEnabled(false);
            jlab14.setEnabled(false);
            jlab15.setEnabled(false);
            jtf14.setEnabled(false);
            jtf15.setEnabled(false);
            jtf16.setEnabled(false);
            jtf17.setEnabled(false);
        }
    });

    GridBagLayout CalLayout4 = new GridBagLayout();
    GridBagConstraints gbc4 = new GridBagConstraints();
    pn4.setLayout(CalLayout4);
    gbc4.weightx = 1.0; //default 0.0
    gbc4.weighty = 1.0; //default 0.0      
    gbc4.insets = new Insets(4, 4, 4, 4); // Add some space
    gbc4.fill = GridBagConstraints.BOTH;

    gbc4.gridwidth = 1;

    gbc4.gridx = 0;
    gbc4.gridy = 0;
    CalLayout4.setConstraints(jbtn1, gbc4);

    gbc4.gridx = 1;
    gbc4.gridy = 0;
    CalLayout4.setConstraints(jbtn2, gbc4);

    gbc4.gridx = 2;
    gbc4.gridy = 0;
    CalLayout4.setConstraints(jbtn3, gbc4);

    gbc4.gridx = 3;
    gbc4.gridy = 0;
    CalLayout4.setConstraints(jbtn4, gbc4);

    gbc4.gridx = 0;
    gbc4.gridy = 1;
    CalLayout4.setConstraints(jlab12, gbc4);

    gbc4.gridwidth = 3;

    gbc4.gridx = 1;
    gbc4.gridy = 1;
    CalLayout4.setConstraints(jtf13, gbc4);

    gbc4.gridwidth = 2;

    gbc4.gridx = 0;
    gbc4.gridy = 2;
    CalLayout4.setConstraints(jlab13, gbc4);

    gbc4.gridx = 2;
    gbc4.gridy = 2;
    CalLayout4.setConstraints(jtf14, gbc4);

    gbc4.gridx = 0;
    gbc4.gridy = 3;
    CalLayout4.setConstraints(jlab14, gbc4);

    gbc4.gridx = 2;
    gbc4.gridy = 3;
    CalLayout4.setConstraints(jtf15, gbc4);

    gbc4.gridx = 0;
    gbc4.gridy = 4;
    CalLayout4.setConstraints(jlab15, gbc4);

    gbc4.gridwidth = 1;

    gbc4.gridx = 2;
    gbc4.gridy = 4;
    CalLayout4.setConstraints(jtf16, gbc4);

    gbc4.gridx = 3;
    gbc4.gridy = 4;
    CalLayout4.setConstraints(jtf17, gbc4);

    pn4.add(jlab12);
    pn4.add(jlab13);
    pn4.add(jlab14);
    pn4.add(jlab15);
    pn4.add(jtf13);
    pn4.add(jtf14);
    pn4.add(jtf15);
    pn4.add(jtf16);
    pn4.add(jtf17);
    pn4.add(jbtn1);
    pn4.add(jbtn2);
    pn4.add(jbtn3);
    pn4.add(jbtn4);

    // jfrm layout all
    GridBagLayout CalLayout = new GridBagLayout();
    GridBagConstraints gbc = new GridBagConstraints();
    jfrm.setLayout(CalLayout);

    gbc.weightx = 1.0; //default 0.0
    gbc.weighty = 1.0; //default 0.0

    gbc.insets = new Insets(4, 4, 4, 4); // Add some space
    gbc.fill = GridBagConstraints.BOTH;

    gbc.gridwidth = 4;

    gbc.gridx = 0;
    gbc.gridy = 0;
    CalLayout.setConstraints(pn1, gbc);

    gbc.gridx = 0;
    gbc.gridy = 1;
    CalLayout.setConstraints(pn2, gbc);

    gbc.gridx = 0;
    gbc.gridy = 2;
    CalLayout.setConstraints(pn3, gbc);

    gbc.gridx = 0;
    gbc.gridy = 3;
    CalLayout.setConstraints(pn4, gbc);

    jfrm.add(pn1);
    jfrm.add(pn2);
    jfrm.add(pn3);
    jfrm.add(pn4);

    // Help Menu Bar
    JMenuBar jmb = new JMenuBar();
    JMenu jmh = new JMenu("Help");
    JMenuItem jmiAbout = new JMenuItem("About");
    jmiAbout.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent arg0) {
            JOptionPane.showMessageDialog(jfrm,
                    "Name:          Chi Square Calculator\n" + "Version:       1.0\n"
                            + "Author:         Felix Yanhui Fan\n" + "EMail:           nolanfyh@gmail.com\n"
                            + "Website:     http://felixfan.github.io/ChiSquareCalculator\n");

        }
    });
    JMenuItem jmiLisence = new JMenuItem("Lisence");
    jmiLisence.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            JOptionPane.showMessageDialog(jfrm,
                    "This program is licensed under the terms of \n"
                            + "the GNU General Public License version 3 \n" + "Available online under: \n"
                            + "http://www.gnu.org/licenses/gpl-3.0.html\n");

        }
    });

    jmh.add(jmiAbout);
    jmh.add(jmiLisence);

    jmb.add(Box.createHorizontalGlue()); // Aligning JMenu on the right corner of JMenuBar
    jmb.add(jmh);

    jfrm.setJMenuBar(jmb);

    jfrm.setVisible(true);
}

From source file:chisquarecalculator.ChisqCal.java

public ChisqCal() {
    final JFrame jfrm = new JFrame("Chi Square Calculator");
    jfrm.setSize(400, 550);/*from w w  w  .  jav a2s  .c  o  m*/
    jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    jfrm.setResizable(false);

    // panel 1
    JPanel pn1 = new JPanel();
    pn1.setOpaque(true);
    pn1.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(), "2 x 2"));

    JLabel jlab1 = new JLabel("class 1");
    JLabel jlab2 = new JLabel("class 2");
    JLabel jlab3 = new JLabel("case");
    JLabel jlab4 = new JLabel("control");

    jtf1 = new JTextField();
    jtf2 = new JTextField();
    jtf3 = new JTextField();
    jtf4 = new JTextField();

    // pn1 layout all
    GridBagLayout CalLayout1 = new GridBagLayout();
    GridBagConstraints gbc1 = new GridBagConstraints();
    pn1.setLayout(CalLayout1);
    gbc1.weightx = 1.0; //default 0.0
    gbc1.weighty = 1.0; //default 0.0      
    gbc1.insets = new Insets(4, 4, 4, 4); // Add some space
    gbc1.fill = GridBagConstraints.BOTH;

    gbc1.gridwidth = 1;

    gbc1.gridx = 1;
    gbc1.gridy = 0;
    CalLayout1.setConstraints(jlab1, gbc1);

    gbc1.gridx = 2;
    gbc1.gridy = 0;
    CalLayout1.setConstraints(jlab2, gbc1);

    gbc1.gridx = 0;
    gbc1.gridy = 1;
    CalLayout1.setConstraints(jlab3, gbc1);

    gbc1.gridx = 1;
    gbc1.gridy = 1;
    CalLayout1.setConstraints(jtf1, gbc1);

    gbc1.gridx = 2;
    gbc1.gridy = 1;
    CalLayout1.setConstraints(jtf2, gbc1);

    gbc1.gridx = 0;
    gbc1.gridy = 2;
    CalLayout1.setConstraints(jlab4, gbc1);

    gbc1.gridx = 1;
    gbc1.gridy = 2;
    CalLayout1.setConstraints(jtf3, gbc1);

    gbc1.gridx = 2;
    gbc1.gridy = 2;
    CalLayout1.setConstraints(jtf4, gbc1);

    pn1.add(jlab1);
    pn1.add(jlab2);
    pn1.add(jlab3);
    pn1.add(jlab4);
    pn1.add(jtf1);
    pn1.add(jtf2);
    pn1.add(jtf3);
    pn1.add(jtf4);

    // panel 2
    JPanel pn2 = new JPanel();
    pn2.setOpaque(true);
    pn2.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(), "2 x 3"));

    JLabel jlab5 = new JLabel("class 1");
    JLabel jlab6 = new JLabel("class 2");
    JLabel jlab7 = new JLabel("class 3");
    JLabel jlab8 = new JLabel("case");
    JLabel jlab9 = new JLabel("control");

    jtf5 = new JTextField();
    jtf6 = new JTextField();
    jtf7 = new JTextField();
    jtf8 = new JTextField();
    jtf9 = new JTextField();
    jtf10 = new JTextField();

    // pn2 layout all
    GridBagLayout CalLayout2 = new GridBagLayout();
    GridBagConstraints gbc2 = new GridBagConstraints();
    pn2.setLayout(CalLayout2);
    gbc2.weightx = 1.0; //default 0.0
    gbc2.weighty = 1.0; //default 0.0      
    gbc2.insets = new Insets(4, 4, 4, 4); // Add some space
    gbc2.fill = GridBagConstraints.BOTH;

    gbc2.gridwidth = 1;

    gbc2.gridx = 1;
    gbc2.gridy = 0;
    CalLayout2.setConstraints(jlab5, gbc2);

    gbc2.gridx = 2;
    gbc2.gridy = 0;
    CalLayout2.setConstraints(jlab6, gbc2);

    gbc2.gridx = 3;
    gbc2.gridy = 0;
    CalLayout2.setConstraints(jlab7, gbc2);

    gbc2.gridx = 0;
    gbc2.gridy = 1;
    CalLayout2.setConstraints(jlab8, gbc2);

    gbc2.gridx = 1;
    gbc2.gridy = 1;
    CalLayout2.setConstraints(jtf5, gbc2);

    gbc2.gridx = 2;
    gbc2.gridy = 1;
    CalLayout2.setConstraints(jtf6, gbc2);

    gbc2.gridx = 3;
    gbc2.gridy = 1;
    CalLayout2.setConstraints(jtf7, gbc2);

    gbc2.gridx = 0;
    gbc2.gridy = 2;
    CalLayout2.setConstraints(jlab9, gbc2);

    gbc2.gridx = 1;
    gbc2.gridy = 2;
    CalLayout2.setConstraints(jtf8, gbc2);

    gbc2.gridx = 2;
    gbc2.gridy = 2;
    CalLayout2.setConstraints(jtf9, gbc2);

    gbc2.gridx = 3;
    gbc2.gridy = 2;
    CalLayout2.setConstraints(jtf10, gbc2);

    pn2.add(jlab5);
    pn2.add(jlab6);
    pn2.add(jlab7);
    pn2.add(jlab8);
    pn2.add(jlab9);
    pn2.add(jtf5);
    pn2.add(jtf6);
    pn2.add(jtf7);
    pn2.add(jtf8);
    pn2.add(jtf9);
    pn2.add(jtf10);

    // panel 3      
    JPanel pn3 = new JPanel();
    pn3.setOpaque(true);
    pn3.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(), "statistic"));

    JLabel jlab10 = new JLabel("chi-square");
    JLabel jlab11 = new JLabel("degree of freedom");

    jtf11 = new JTextField();
    jtf12 = new JTextField();

    GridBagLayout CalLayout3 = new GridBagLayout();
    GridBagConstraints gbc3 = new GridBagConstraints();
    pn3.setLayout(CalLayout3);
    gbc3.weightx = 1.0; //default 0.0
    gbc3.weighty = 1.0; //default 0.0      
    gbc3.insets = new Insets(4, 4, 4, 4); // Add some space
    gbc3.fill = GridBagConstraints.BOTH;

    gbc3.gridwidth = 1;

    gbc3.gridx = 0;
    gbc3.gridy = 0;
    CalLayout3.setConstraints(jlab10, gbc3);

    gbc3.gridwidth = 3;

    gbc3.gridx = 1;
    gbc3.gridy = 0;
    CalLayout3.setConstraints(jtf11, gbc3);

    gbc3.gridwidth = 2;

    gbc3.gridx = 0;
    gbc3.gridy = 1;
    CalLayout3.setConstraints(jlab11, gbc3);

    gbc3.gridx = 2;
    gbc3.gridy = 1;
    CalLayout3.setConstraints(jtf12, gbc3);

    pn3.add(jlab10);
    pn3.add(jlab11);
    pn3.add(jtf11);
    pn3.add(jtf12);

    JPanel pn4 = new JPanel();
    pn4.setOpaque(true);
    pn4.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(), "result"));

    JLabel jlab12 = new JLabel("p-value");
    final JLabel jlab13 = new JLabel("odds ratio");
    final JLabel jlab14 = new JLabel("standard error");
    final JLabel jlab15 = new JLabel("confidence interval 95%");

    jtf13 = new JTextField();
    jtf14 = new JTextField();
    jtf15 = new JTextField();
    jtf16 = new JTextField();
    jtf17 = new JTextField();

    jlab13.setEnabled(false);
    jlab14.setEnabled(false);
    jlab15.setEnabled(false);
    jtf14.setEnabled(false);
    jtf15.setEnabled(false);
    jtf16.setEnabled(false);
    jtf17.setEnabled(false);

    JButton jbtn1 = new JButton("Run 2x2");
    jbtn1.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            long number1, number2, number3, number4;
            try {
                number1 = Long.parseLong(jtf1.getText());
                number2 = Long.parseLong(jtf2.getText());
                number3 = Long.parseLong(jtf3.getText());
                number4 = Long.parseLong(jtf4.getText());
            } catch (Exception ne) {
                JOptionPane.showMessageDialog(jfrm, "Error: Bad input, only integer is acceptable!");
                return;
            }

            long[][] obs = new long[2][2];

            obs[0][0] = number1;
            obs[0][1] = number2;
            obs[1][0] = number3;
            obs[1][1] = number4;

            ChiSquareTest mychiSquare = new ChiSquareTest();

            final java.text.DecimalFormat mydf = new java.text.DecimalFormat("0.0000");

            double stats = mychiSquare.chiSquare(obs);
            jtf11.setText(String.valueOf(mydf.format(stats)));
            jtf12.setText(String.valueOf(1));

            double pvalue = mychiSquare.chiSquareTest(obs);
            jtf13.setText(String.valueOf(pvalue));

            jtf5.setText("");
            jtf6.setText("");
            jtf7.setText("");
            jtf8.setText("");
            jtf9.setText("");
            jtf10.setText("");

            jlab13.setEnabled(true);
            jlab14.setEnabled(true);
            jlab15.setEnabled(true);
            jtf14.setEnabled(true);
            jtf15.setEnabled(true);
            jtf16.setEnabled(true);
            jtf17.setEnabled(true);

            double or = (double) (number2 * number3) / (number1 * number4);
            double se = Math.sqrt(
                    (double) 1 / number1 + (double) 1 / number2 + (double) 1 / number3 + (double) 1 / number4);
            double logOR = Math.log(or);
            double logU95 = logOR + 1.96 * se;
            double logL95 = logOR - 1.96 * se;
            double U95 = Math.exp(logU95);
            double L95 = Math.exp(logL95);

            jtf14.setText(String.valueOf(mydf.format(or)));
            jtf15.setText(String.valueOf(mydf.format(se)));
            jtf16.setText(String.valueOf(mydf.format(L95)));
            jtf17.setText(String.valueOf(mydf.format(U95)));

        }
    });

    JButton jbtn2 = new JButton("Run 2x3");
    jbtn2.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            long number1, number2, number3, number4, number5, number6;
            try {
                number1 = Long.parseLong(jtf5.getText());
                number2 = Long.parseLong(jtf6.getText());
                number3 = Long.parseLong(jtf7.getText());
                number4 = Long.parseLong(jtf8.getText());
                number5 = Long.parseLong(jtf9.getText());
                number6 = Long.parseLong(jtf10.getText());
            } catch (Exception ne) {
                JOptionPane.showMessageDialog(jfrm, "Error: Bad input, only integer is acceptable!");
                return;
            }

            long[][] obs = new long[2][3];

            obs[0][0] = number1;
            obs[0][1] = number2;
            obs[0][2] = number3;
            obs[1][0] = number4;
            obs[1][1] = number5;
            obs[1][2] = number6;

            ChiSquareTest mychiSquare = new ChiSquareTest();

            final java.text.DecimalFormat mydf = new java.text.DecimalFormat("0.0000");

            double stats = mychiSquare.chiSquare(obs);
            jtf11.setText(String.valueOf(mydf.format(stats)));
            jtf12.setText(String.valueOf(2));

            double pvalue = mychiSquare.chiSquareTest(obs);
            jtf13.setText(String.valueOf(pvalue));

            jtf1.setText("");
            jtf2.setText("");
            jtf3.setText("");
            jtf4.setText("");
            jtf14.setText("");
            jtf15.setText("");
            jtf16.setText("");
            jtf17.setText("");

            jlab13.setEnabled(false);
            jlab14.setEnabled(false);
            jlab15.setEnabled(false);
            jtf14.setEnabled(false);
            jtf15.setEnabled(false);
            jtf16.setEnabled(false);
            jtf17.setEnabled(false);

        }
    });

    JButton jbtn3 = new JButton("Run Statistic");
    jbtn3.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            double stat, df;
            try {
                stat = Double.parseDouble(jtf11.getText());
                df = Double.parseDouble(jtf12.getText());
            } catch (Exception ne) {
                JOptionPane.showMessageDialog(jfrm, "Error: Bad input, only number is acceptable!");
                return;
            }
            ChiSquaredDistribution distribution = new ChiSquaredDistribution(df);
            double pvalue = 1 - distribution.cumulativeProbability(stat);
            jtf13.setText(String.valueOf(pvalue));

            jtf1.setText("");
            jtf2.setText("");
            jtf3.setText("");
            jtf4.setText("");
            jtf5.setText("");
            jtf6.setText("");
            jtf7.setText("");
            jtf8.setText("");
            jtf9.setText("");
            jtf10.setText("");
            jtf14.setText("");
            jtf15.setText("");
            jtf16.setText("");
            jtf17.setText("");

            jlab13.setEnabled(false);
            jlab14.setEnabled(false);
            jlab15.setEnabled(false);
            jtf14.setEnabled(false);
            jtf15.setEnabled(false);
            jtf16.setEnabled(false);
            jtf17.setEnabled(false);
        }
    });

    JButton jbtn4 = new JButton("clear");
    jbtn4.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            jtf1.setText("");
            jtf2.setText("");
            jtf3.setText("");
            jtf4.setText("");
            jtf5.setText("");
            jtf6.setText("");
            jtf7.setText("");
            jtf8.setText("");
            jtf9.setText("");
            jtf10.setText("");
            jtf11.setText("");
            jtf12.setText("");
            jtf13.setText("");
            jtf14.setText("");
            jtf15.setText("");
            jtf16.setText("");
            jtf17.setText("");

            jlab13.setEnabled(false);
            jlab14.setEnabled(false);
            jlab15.setEnabled(false);
            jtf14.setEnabled(false);
            jtf15.setEnabled(false);
            jtf16.setEnabled(false);
            jtf17.setEnabled(false);
        }
    });

    GridBagLayout CalLayout4 = new GridBagLayout();
    GridBagConstraints gbc4 = new GridBagConstraints();
    pn4.setLayout(CalLayout4);
    gbc4.weightx = 1.0; //default 0.0
    gbc4.weighty = 1.0; //default 0.0      
    // gbc4.insets = new Insets(4, 4, 4, 4); // Add some space
    gbc4.insets = new Insets(1, 1, 1, 1);
    gbc4.fill = GridBagConstraints.BOTH;

    gbc4.gridwidth = 1;

    gbc4.gridx = 0;
    gbc4.gridy = 0;
    CalLayout4.setConstraints(jbtn1, gbc4);

    gbc4.gridx = 1;
    gbc4.gridy = 0;
    CalLayout4.setConstraints(jbtn2, gbc4);

    gbc4.gridx = 2;
    gbc4.gridy = 0;
    CalLayout4.setConstraints(jbtn3, gbc4);

    gbc4.gridx = 3;
    gbc4.gridy = 0;
    CalLayout4.setConstraints(jbtn4, gbc4);

    gbc4.gridx = 0;
    gbc4.gridy = 1;
    CalLayout4.setConstraints(jlab12, gbc4);

    gbc4.gridwidth = 3;

    gbc4.gridx = 1;
    gbc4.gridy = 1;
    CalLayout4.setConstraints(jtf13, gbc4);

    gbc4.gridwidth = 2;

    gbc4.gridx = 0;
    gbc4.gridy = 2;
    CalLayout4.setConstraints(jlab13, gbc4);

    gbc4.gridx = 2;
    gbc4.gridy = 2;
    CalLayout4.setConstraints(jtf14, gbc4);

    gbc4.gridx = 0;
    gbc4.gridy = 3;
    CalLayout4.setConstraints(jlab14, gbc4);

    gbc4.gridx = 2;
    gbc4.gridy = 3;
    CalLayout4.setConstraints(jtf15, gbc4);

    gbc4.gridx = 0;
    gbc4.gridy = 4;
    CalLayout4.setConstraints(jlab15, gbc4);

    gbc4.gridwidth = 1;

    gbc4.gridx = 2;
    gbc4.gridy = 4;
    CalLayout4.setConstraints(jtf16, gbc4);

    gbc4.gridx = 3;
    gbc4.gridy = 4;
    CalLayout4.setConstraints(jtf17, gbc4);

    pn4.add(jlab12);
    pn4.add(jlab13);
    pn4.add(jlab14);
    pn4.add(jlab15);
    pn4.add(jtf13);
    pn4.add(jtf14);
    pn4.add(jtf15);
    pn4.add(jtf16);
    pn4.add(jtf17);
    pn4.add(jbtn1);
    pn4.add(jbtn2);
    pn4.add(jbtn3);
    pn4.add(jbtn4);

    // jfrm layout all
    GridBagLayout CalLayout = new GridBagLayout();
    GridBagConstraints gbc = new GridBagConstraints();
    jfrm.setLayout(CalLayout);

    gbc.weightx = 1.0; //default 0.0
    gbc.weighty = 1.0; //default 0.0

    gbc.insets = new Insets(4, 4, 4, 4); // Add some space
    gbc.fill = GridBagConstraints.BOTH;

    gbc.gridwidth = 4;

    gbc.gridx = 0;
    gbc.gridy = 0;
    CalLayout.setConstraints(pn1, gbc);

    gbc.gridx = 0;
    gbc.gridy = 1;
    CalLayout.setConstraints(pn2, gbc);

    gbc.gridx = 0;
    gbc.gridy = 2;
    CalLayout.setConstraints(pn3, gbc);

    gbc.gridx = 0;
    gbc.gridy = 3;
    CalLayout.setConstraints(pn4, gbc);

    jfrm.add(pn1);
    jfrm.add(pn2);
    jfrm.add(pn3);
    jfrm.add(pn4);

    // Help Menu Bar
    JMenuBar jmb = new JMenuBar();
    JMenu jmh = new JMenu("Help");
    JMenuItem jmiAbout = new JMenuItem("About");
    jmiAbout.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent arg0) {
            JOptionPane.showMessageDialog(jfrm,
                    "Name:          Chi Square Calculator\n" + "Version:       1.0\n"
                            + "Author:         Felix Yanhui Fan\n" + "EMail:          felixfanyh@gmail.com\n"
                            + "Website:     http://felixfan.github.io/ChiSquareCalculator\n");
        }
    });
    JMenuItem jmiLisence = new JMenuItem("Lisence");
    jmiLisence.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            JOptionPane.showMessageDialog(jfrm,
                    "This program is licensed under the terms of \n"
                            + "the GNU General Public License version 3 \n" + "Available online under: \n"
                            + "http://www.gnu.org/licenses/gpl-3.0.html\n");
        }
    });

    jmh.add(jmiAbout);
    jmh.add(jmiLisence);

    jmb.add(Box.createHorizontalGlue()); // Aligning JMenu on the right corner of JMenuBar
    jmb.add(jmh);

    jfrm.setJMenuBar(jmb);

    jfrm.setVisible(true);
}