Example usage for org.jfree.data.statistics HistogramDataset HistogramDataset

Introduction

In this page you can find the example usage for org.jfree.data.statistics HistogramDataset HistogramDataset.

Prototype

public HistogramDataset() 

Source Link

Document

Creates a new (empty) dataset with a default type of HistogramType .FREQUENCY.

Usage

From source file:utils.RandomVariable.java

public static void main(String[] args) {
    double[][] value = new double[2][100000];
    for (int i = 1; i < 100000; i++) {
        //double v = RandomVariable.normal(0, 1);
        //double v = RandomVariable.cauchy(0, 1);
        //double v = RandomVariable.chi2(5);
        //double v = RandomVariable.exponential(1);
        //            double v = RandomVariable.laplace(0, 1);
        // double v = RandomVariable.laplace(-3,1);
        //double v = RandomVariable.triangular(-6, -5, -3);
        double v = RandomVariable.weibull(4, 5);
        //            if (v > 10 || v < -10) {
        //                value[0][i] = 10d;
        //            } else {
        //                value[0][i] = v;
        //            }

        //v = RandomVariable.laplace(-3,0.25);

        //            v = RandomVariable.weibull(1, 1.5);
        if (v > 10 || v < -10) {
            value[1][i] = 10d;/*  w  w  w.j a  va2 s .  c  om*/
        } else {
            value[1][i] = v;
        }

    }
    int number = 40;
    HistogramDataset dataset = new HistogramDataset();
    dataset.setType(HistogramType.FREQUENCY);
    dataset.addSeries("Value 1", value[0], number);
    dataset.addSeries("Value 2", value[1], number);
    String plotTitle = "Histogram";
    String xaxis = "number";
    String yaxis = "value";
    PlotOrientation orientation = PlotOrientation.VERTICAL;
    boolean show = false;
    boolean toolTips = false;
    boolean urls = false;
    JFreeChart chart = ChartFactory.createHistogram(plotTitle, xaxis, yaxis, dataset, orientation, show,
            toolTips, urls);
    //        int width = 500;
    //        int height = 300;
    //        try {
    //            ChartUtilities.saveChartAsPNG(new File("histogram3.PNG"), chart, width, height);
    //        } catch (IOException e) {
    //        }
    //Display Chart
    ChartPanel chartPanel = new ChartPanel(chart);
    JFrame frame = new JFrame("Histogram plot demo");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.getContentPane().add(chartPanel);
    frame.pack();
    frame.setVisible(true);

}

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From source file:org.jfree.chart.demo.HistogramDemo1.java

private static IntervalXYDataset createDataset() {
    HistogramDataset histogramdataset = new HistogramDataset();
    double ad[] = new double[1000];
    Random random = new Random(0xbc614eL);
    for (int i = 0; i < 1000; i++)
        ad[i] = random.nextGaussian() + 5D;

    histogramdataset.addSeries("H1", ad, 100, 2D, 8D);
    ad = new double[1000];
    for (int j = 0; j < 1000; j++)
        ad[j] = random.nextGaussian() + 7D;

    histogramdataset.addSeries("H2", ad, 100, 4D, 10D);
    return histogramdataset;
}

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From source file:testes.Histograma.java

private static IntervalXYDataset crearDataset() {
    //guarda os dados do histograma
    HistogramDataset dados = new HistogramDataset();
    int classes, min, max;

    //valores da amos
    //double amostra[] = {7,8,9,10,10,10.2,10.8,11,12,12};
    double amostra[] = { 89, 85, 93, 81, 77, 83, 87, 81, 83, 89, 81, 86, 80, 84, 82 };
    if (amostra.length <= 25) {
        classes = 5;/* www.j a v a  2s .c  o m*/
    } else {
        classes = (int) Math.round(Math.sqrt(amostra.length));
    }

    dados.addSeries("Frequncias da Amostra", amostra, classes, 77, 95);
    return dados;
}

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From source file:spminiproject.lab2.chart.Histogram2.java

private static IntervalXYDataset createDataset(String title, double vector[], int intervals) {
    HistogramDataset dataset = new HistogramDataset();
    //        double vector [] = {70, 36, 43, 69, 82, 48, 34, 62, 35, 15,
    //            59, 139, 46, 37, 42, 30, 55, 56, 36, 82,
    //            38, 89, 54, 25, 35, 24, 22, 9, 55, 19};
    // In the exercise we are asked to construct a distribution of frequencies of 8 intervals
    // That's why we put 8 in the third parameter of addSeries
    dataset.addSeries(title, vector, intervals);
    return dataset;
}

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From source file:es.uvigo.darwin.jmodeltest.io.RFHistogram.java

private static JFreeChart buildHistogram(double[] values, int steps, String plotTitle, String xAxis,
        String yAxis) {/*from ww  w  .  j a va  2 s.  c  o m*/
    HistogramDataset hds = new HistogramDataset();
    hds.setType(HistogramType.RELATIVE_FREQUENCY);
    hds.addSeries(1, values, steps);
    PlotOrientation orientation = PlotOrientation.VERTICAL;
    boolean show = false;
    boolean toolTips = false;
    boolean urls = false;
    JFreeChart chart = ChartFactory.createHistogram(plotTitle, xAxis, yAxis, hds, orientation, show, toolTips,
            urls);
    return chart;
}

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From source file:baocaoxla.xuly_compare.java

public ChartPanel displayhistogram(BufferedImage image) {

    HistogramDataset dataset = new HistogramDataset();

    final int w = image.getWidth();
    final int h = image.getHeight();
    double[] r = new double[w * h];
    double[] g = new double[w * h];
    double[] b = new double[w * h];
    int dem = 0;/* ww w  .  ja  v a 2  s. co m*/
    for (int i = 0; i < h; i++) {
        for (int j = 0; j < w; j++) {
            Color c = new Color(image.getRGB(j, i));
            r[dem] = c.getRed();
            g[dem] = c.getGreen();
            b[dem] = c.getBlue();
            dem++;
        }
    }
    //r = raster.getSamples(0, 0, w, h, 0, r);
    dataset.addSeries("Red", r, 256);
    //r = raster.getSamples(0, 0, w, h, 1, r);
    dataset.addSeries("Green", g, 256);
    // r = raster.getSamples(0, 0, w, h, 2, r);
    dataset.addSeries("Blue", b, 256);
    // chart
    JFreeChart chart = ChartFactory.createHistogram("Histogram", "Value", "Count", dataset,
            PlotOrientation.VERTICAL, true, true, false);
    ChartPanel panel = new ChartPanel(chart);
    return panel;

}

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From source file:ch.zhaw.ias.dito.ui.util.HistogramFrame.java

public HistogramFrame(Question q) {
    String title = Translation.INSTANCE.get("misc.graphic.histogram") + " " + q.getName();
    setTitle(title);//from   w  ww  .  j ava  2s  .c o m
    HistogramDataset hist = new HistogramDataset();
    hist.setType(HistogramType.FREQUENCY);

    Set<Double> values = new TreeSet<Double>();
    q.getData().addValuesToCollection(values);
    int numOfBins = Math.min(values.size(), (q.getData().filteredLength() / 20) + 10);
    hist.addSeries(q.getName(), q.getData().getValues(), numOfBins);

    JFreeChart chart = ChartFactory.createHistogram(title, Translation.INSTANCE.get("misc.graphic.value"),
            Translation.INSTANCE.get("misc.graphic.frequency"), hist, PlotOrientation.VERTICAL, false, true,
            false);
    this.add(new ChartPanel(chart), BorderLayout.CENTER);

    this.setSize(300, 300);
    this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    this.setVisible(true);
}

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From source file:pertchart.Histogram.java

public JFreeChart createHistorgram(double[] data) {

    HistogramDataset dataset = new HistogramDataset();
    dataset.setType(HistogramType.RELATIVE_FREQUENCY);
    dataset.addSeries("Histogram", data, this.bins);
    String plotTitle = "Project Completion Times";
    String xaxis = "Completion Times";
    String yaxis = "";
    PlotOrientation orientation = PlotOrientation.VERTICAL;
    boolean show = false;
    boolean toolTips = false;
    boolean urls = false;
    JFreeChart chart = ChartFactory.createHistogram(plotTitle, xaxis, yaxis, dataset, orientation, show,
            toolTips, urls);/*from  w w  w  .j  ava 2  s  . c o m*/
    int width = 500;
    int height = 300;
    try {
        ChartUtilities.saveChartAsPNG(new File("histogram.png"), chart, width, height);
    } catch (Exception e) {
        System.out.println(e);
    }
    return chart;
}

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From source file:info.opencards.ui.ltmstats.AdvancedLtmStatsPanel.java

public void rebuildPanel(Collection<CardFile> currentFiles) {
    removeAll();/*  w w w.  j  a v a2s .com*/

    // setup the stacked bar chart
    dataset = new HistogramDataset();
    //        dataset.addSeries("test", new double[]{1,2,3},1);
    final JFreeChart chart = ChartFactory.createHistogram(null, // chart title
            Utils.getRB().getString("CardTableModel.stats.weekSchedule"), // domain axis label
            //                "# cards",                     // range axis label
            null, // range axis label
            dataset, // data
            PlotOrientation.VERTICAL, // the plot orientation
            false, // legend
            true, // tooltips
            false // urls
    );

    add(new ChartPanel(chart), BorderLayout.CENTER);
    //        rebuildPanel(new HashSet<CardFile>());

    if (currentFiles != null)
        this.currentFiles = currentFiles;

    //        dataset.setGroup(null);

    if (this.currentFiles == null)
        return;

    List<Double> eValues = new ArrayList<Double>();

    for (CardFile currentFile : currentFiles) {
        for (Item item : currentFile.getFlashCards().getLTMItems()) {
            LTMItem ltmItem = (LTMItem) item;
            eValues.add(ltmItem.getEFactor());
        }
    }
    double[] eVals = new double[eValues.size()];
    for (int i = 0; i < eValues.size(); i++) {
        eVals[i] = eValues.get(i);

    }

    if (eVals.length > 0)
        dataset.addSeries("test", eVals, 10);

    HistogramDataset dataset1 = new HistogramDataset();
    dataset1.addSeries("test", eVals, 10);

    repaint();

    //        computeScheduleHist(this.currentFiles);
    //        set2EDistribution(currentFiles);
}

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From source file:gui.Histograma.java

private static IntervalXYDataset criarDataset() {
    //guarda os dados do histograma
    HistogramDataset dados = new HistogramDataset();
    int classes;//from   w  w  w.j  a va 2  s.com
    double valores[] = new double[amostra.size()];

    //Definindo quantidade de classes
    if (amostra.size() <= 25) {
        classes = 5;
    } else {
        classes = (int) Math.round(Math.sqrt(amostra.size()));
    }
    //Criando vetor com valores da amostra
    for (int i = 0; i < amostra.size(); i++) {
        valores[i] = amostra.get(i);
    }

    //Adicionando os dataset para o histograma
    dados.addSeries("Frequncia das Amostras", valores, classes, min, max);
    return dados;
}

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