Examples of org.jfree.data.statistics.HistogramDataset.addSeries()

Class org.jfree.data.statistics.HistogramDataset

Examples of org.jfree.data.statistics.HistogramDataset.addSeries()

org.jfree.data.statistics.HistogramDataset.addSeries()
Adds a series to the dataset, using the specified number of bins, and sends a {@link DatasetChangeEvent} to all registered listeners. @param key the series key (null not permitted). @param values the values (null not permitted). @param bins the number of bins (must be at least 1).

        assertTrue(d1.equals(d2));


        // simple check for independence
        d1.addSeries("Series 2", new double[] {1.0, 2.0, 3.0}, 2);
        assertFalse(d1.equals(d2));
        d2.addSeries("Series 2", new double[] {1.0, 2.0, 3.0}, 2);
        assertTrue(d1.equals(d2));
    }


    /**
     * Serialize an instance, restore it, and check for equality.

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     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        double[] values = {1.0, 2.0, 3.0, 4.0, 6.0, 12.0, 5.0, 6.3, 4.5};
        HistogramDataset d1 = new HistogramDataset();
        d1.addSeries("Series 1", values, 5);
        HistogramDataset d2 = null;


        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);

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        assertEquals(d1, d2);


        // simple check for independence
        d1.addSeries("Series 2", new double[] {1.0, 2.0, 3.0}, 2);
        assertFalse(d1.equals(d2));
        d2.addSeries("Series 2", new double[] {1.0, 2.0, 3.0}, 2);
        assertTrue(d1.equals(d2));
    }


    /**
     * A test for a bug reported in the forum where the series name isn't being

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     * returned correctly.
     */
    public void testGetSeriesKey() {
        double[] values = {1.0, 2.0, 3.0, 4.0, 6.0, 12.0, 5.0, 6.3, 4.5};
        HistogramDataset d1 = new HistogramDataset();
        d1.addSeries("Series 1", values, 5);
        assertEquals("Series 1", d1.getSeriesKey(0));
    }


    /**
     * Some checks for the addSeries() method.

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     * Some checks for the addSeries() method.
     */
    public void testAddSeries() {
        double[] values = {-1.0, 0.0, 0.1, 0.9, 1.0, 1.1, 1.9, 2.0, 3.0};
        HistogramDataset d = new HistogramDataset();
        d.addSeries("S1", values, 2, 0.0, 2.0);
        assertEquals(0.0, d.getStartXValue(0, 0), EPSILON);
        assertEquals(1.0, d.getEndXValue(0, 0), EPSILON);
        assertEquals(4.0, d.getYValue(0, 0), EPSILON);


        assertEquals(1.0, d.getStartXValue(0, 1), EPSILON);

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     * Another check for the addSeries() method.
     */
    public void testAddSeries2() {
        double[] values = {0.0, 1.0, 2.0, 3.0, 4.0, 5.0};
        HistogramDataset hd = new HistogramDataset();
        hd.addSeries("S1", values, 5);
        assertEquals(0.0, hd.getStartXValue(0, 0), EPSILON);
        assertEquals(1.0, hd.getEndXValue(0, 0), EPSILON);
        assertEquals(1.0, hd.getYValue(0, 0), EPSILON);
        assertEquals(1.0, hd.getStartXValue(0, 1), EPSILON);
        assertEquals(2.0, hd.getEndXValue(0, 1), EPSILON);

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        double[] values = {-5.000000000000286E-5};
        int bins = 1260;
        double minimum = -0.06307522528160199;
        double maximum = 0.06297522528160199;
        HistogramDataset d = new HistogramDataset();
        d.addSeries("S1", values, bins, minimum, maximum);
        assertEquals(0.0, d.getYValue(0, 629), EPSILON);
        assertEquals(1.0, d.getYValue(0, 630), EPSILON);
        assertEquals(0.0, d.getYValue(0, 631), EPSILON);
        assertTrue(values[0] > d.getStartXValue(0, 630));
        assertTrue(values[0] < d.getEndXValue(0, 630));

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     * when a data value is *very* close to the upper limit of the last bin.
     */
    public void test1553088() {
        double[] values = {-1.0, 0.0, -Double.MIN_VALUE, 3.0};
        HistogramDataset d = new HistogramDataset();
        d.addSeries("S1", values, 2, -1.0, 0.0);
        assertEquals(-1.0, d.getStartXValue(0, 0), EPSILON);
        assertEquals(-0.5, d.getEndXValue(0, 0), EPSILON);
        assertEquals(1.0, d.getYValue(0, 0), EPSILON);


        assertEquals(-0.5, d.getStartXValue(0, 1), EPSILON);

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    public void test2902842() {
        this.lastEvent = null;
        double[] values = {0.0, 1.0, 2.0, 3.0, 4.0, 5.0};
        HistogramDataset hd = new HistogramDataset();
        hd.addChangeListener(this);
        hd.addSeries("S1", values, 5);
        assertNotNull(this.lastEvent);
    }


    /**
     * A reference to the last event received by the datasetChanged() method.

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     * Some checks that the correct values are assigned to bins.
     */
    public void testBins() {
        double[] values = {1.0, 2.0, 3.0, 4.0, 6.0, 12.0, 5.0, 6.3, 4.5};
        HistogramDataset hd = new HistogramDataset();
        hd.addSeries("Series 1", values, 5);
        assertEquals(hd.getYValue(0, 0), 3.0, EPSILON);
        assertEquals(hd.getYValue(0, 1), 3.0, EPSILON);
        assertEquals(hd.getYValue(0, 2), 2.0, EPSILON);
        assertEquals(hd.getYValue(0, 3), 0.0, EPSILON);
        assertEquals(hd.getYValue(0, 4), 1.0, EPSILON);

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