Examples of org.jfree.data.statistics.DefaultStatisticalCategoryDataset

org.jfree.data.statistics.DefaultStatisticalCategoryDataset
A convenience class that provides a default implementation of the {@link StatisticalCategoryDataset} interface.


    /**
     * Check serialization of a more complex instance.
     */
    public void testSerialization2() {
        DefaultStatisticalCategoryDataset d1
            = new DefaultStatisticalCategoryDataset();
        d1.add(1.2, 3.4, "Row 1", "Column 1");
        DefaultStatisticalCategoryDataset d2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(d1);
            out.close();

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    /**
     * Some checks for the add() method.
     */
    public void testAdd() {
        DefaultStatisticalCategoryDataset d1
                = new DefaultStatisticalCategoryDataset();
        d1.add(1.0, 2.0, "R1", "C1");
        assertEquals(1.0, d1.getValue("R1", "C1").doubleValue(), EPSILON);
        assertEquals(2.0, d1.getStdDevValue("R1", "C1").doubleValue(), EPSILON);


        // overwrite the value
        d1.add(10.0, 20.0, "R1", "C1");
        assertEquals(10.0, d1.getValue("R1", "C1").doubleValue(), EPSILON);
        assertEquals(20.0, d1.getStdDevValue("R1", "C1").doubleValue(), EPSILON);
    }

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    /**
     * Some checks for the getRangeLowerBound() method.
     */
    public void testGetRangeLowerBound() {
        DefaultStatisticalCategoryDataset d1
                = new DefaultStatisticalCategoryDataset();
        d1.add(1.0, 2.0, "R1", "C1");
        assertEquals(1.0, d1.getRangeLowerBound(false), EPSILON);
        assertEquals(-1.0, d1.getRangeLowerBound(true), EPSILON);
    }

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    /**
     * Some checks for the getRangeUpperBound() method.
     */
    public void testGetRangeUpperBound() {
        DefaultStatisticalCategoryDataset d1
                = new DefaultStatisticalCategoryDataset();
        d1.add(1.0, 2.0, "R1", "C1");
        assertEquals(1.0, d1.getRangeUpperBound(false), EPSILON);
        assertEquals(3.0, d1.getRangeUpperBound(true), EPSILON);
    }

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     * no exceptions are thrown (particularly by code in the renderer).
     */
    public void testDrawWithNullInfo() {
        boolean success = false;
        try {
            DefaultStatisticalCategoryDataset dataset
                    = new DefaultStatisticalCategoryDataset();
            dataset.add(1.0, 2.0, "S1", "C1");
            dataset.add(3.0, 4.0, "S1", "C2");
            CategoryPlot plot = new CategoryPlot(dataset,
                    new CategoryAxis("Category"), new NumberAxis("Value"),
                    new StatisticalBarRenderer());
            JFreeChart chart = new JFreeChart(plot);
            /* BufferedImage image = */ chart.createBufferedImage(300, 200,

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     * bug report 1779941.
     */
    public void testDrawWithNullMeanVertical() {
        boolean success = false;
        try {
            DefaultStatisticalCategoryDataset dataset
                    = new DefaultStatisticalCategoryDataset();
            dataset.add(1.0, 2.0, "S1", "C1");
            dataset.add(null, new Double(4.0), "S1", "C2");
            CategoryPlot plot = new CategoryPlot(dataset,
                    new CategoryAxis("Category"), new NumberAxis("Value"),
                    new StatisticalBarRenderer());
            JFreeChart chart = new JFreeChart(plot);
            /* BufferedImage image = */ chart.createBufferedImage(300, 200,

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     * bug report 1779941.
     */
    public void testDrawWithNullMeanHorizontal() {
        boolean success = false;
        try {
            DefaultStatisticalCategoryDataset dataset
                    = new DefaultStatisticalCategoryDataset();
            dataset.add(1.0, 2.0, "S1", "C1");
            dataset.add(null, new Double(4.0), "S1", "C2");
            CategoryPlot plot = new CategoryPlot(dataset,
                    new CategoryAxis("Category"), new NumberAxis("Value"),
                    new StatisticalBarRenderer());
            plot.setOrientation(PlotOrientation.HORIZONTAL);
            JFreeChart chart = new JFreeChart(plot);

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     * See bug report 1779941.
     */
    public void testDrawWithNullDeviationVertical() {
        boolean success = false;
        try {
            DefaultStatisticalCategoryDataset dataset
                    = new DefaultStatisticalCategoryDataset();
            dataset.add(1.0, 2.0, "S1", "C1");
            dataset.add(new Double(4.0), null, "S1", "C2");
            CategoryPlot plot = new CategoryPlot(dataset,
                    new CategoryAxis("Category"), new NumberAxis("Value"),
                    new StatisticalBarRenderer());
            JFreeChart chart = new JFreeChart(plot);
            /* BufferedImage image = */ chart.createBufferedImage(300, 200,

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     * See bug report 1779941.
     */
    public void testDrawWithNullDeviationHorizontal() {
        boolean success = false;
        try {
            DefaultStatisticalCategoryDataset dataset
                    = new DefaultStatisticalCategoryDataset();
            dataset.add(1.0, 2.0, "S1", "C1");
            dataset.add(new Double(4.0), null, "S1", "C2");
            CategoryPlot plot = new CategoryPlot(dataset,
                    new CategoryAxis("Category"), new NumberAxis("Value"),
                    new StatisticalBarRenderer());
            plot.setOrientation(PlotOrientation.HORIZONTAL);
            JFreeChart chart = new JFreeChart(plot);

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    public void testFindRangeBounds() {
        StatisticalBarRenderer r = new StatisticalBarRenderer();
        assertNull(r.findRangeBounds(null));


        // an empty dataset should return a null range
        DefaultStatisticalCategoryDataset dataset
                = new DefaultStatisticalCategoryDataset();
        assertNull(r.findRangeBounds(dataset));


        dataset.add(1.0, 0.5, "R1", "C1");
        assertEquals(new Range(0.0, 1.5), r.findRangeBounds(dataset));


        r.setIncludeBaseInRange(false);
        assertEquals(new Range(0.5, 1.5), r.findRangeBounds(dataset));
        r.setIncludeBaseInRange(true);


        dataset.add(-2.0, 0.2, "R1", "C2");
        assertEquals(new Range(-2.2, 1.5), r.findRangeBounds(dataset));


        dataset.add(null, null, "R1", "C3");
        assertEquals(new Range(-2.2, 1.5), r.findRangeBounds(dataset));


        dataset.add(5.0, 1.0, "R2", "C3");
        assertEquals(new Range(-2.2, 6.0), r.findRangeBounds(dataset));


        // check that the series visible flag is observed
        r.setSeriesVisible(1, Boolean.FALSE);
        assertEquals(new Range(-2.2, 1.5), r.findRangeBounds(dataset));

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