Examples of HistogramDataset

Examples of org.jfree.data.statistics.HistogramDataset

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  }
  public static JFreeChart createHistogram(List<List<Object>> series, ResultSetMetaData metaData, int numberOfCategories, int column) {
    // if(histogramButton.isSelected()){
    // IntervalXYDataset dataset = createDataset(data);
    // printResultSet(data);
    HistogramDataset dataset = new HistogramDataset();
    //for (int i = 0; i < series.size(); i++) {

      try {
        if(series.get(0) != null)
          dataset.addSeries(metaData.getColumnName(column + 1), toDoubleArray(series.get(0)), numberOfCategories);
      } catch (SQLException e) {
        dataset.addSeries("Column " + column, toDoubleArray(series.get(0)), numberOfCategories);
      }

    //}


    JFreeChart chart = ChartFactory.createHistogram("Histogram", null, null, dataset,
        PlotOrientation.VERTICAL, true, true, false);
    dataset.seriesChanged(new SeriesChangeEvent(new Object()));
    chart.getXYPlot().setForegroundAlpha(0.75f);

    return chart;

  }
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Examples of org.jfree.data.statistics.HistogramDataset

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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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Examples of org.jfree.data.statistics.HistogramDataset

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    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
        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 = new HistogramDataset();
        d2.addSeries("Series 1", values, 5);

        assertTrue(d1.equals(d2));
        assertTrue(d2.equals(d1));

        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));
    }
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Examples of org.jfree.data.statistics.HistogramDataset

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    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        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 {
            d2 = (HistogramDataset) d1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(d1 != d2);
        assertTrue(d1.getClass() == d2.getClass());
        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));
    }
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Examples of org.jfree.data.statistics.HistogramDataset

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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);
            out.writeObject(d1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                    new ByteArrayInputStream(buffer.toByteArray()));
            d2 = (HistogramDataset) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        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));
    }
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Examples of org.jfree.data.statistics.HistogramDataset

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     * A test for a bug reported in the forum where the series name isn't being
     * 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));
    }
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Examples of org.jfree.data.statistics.HistogramDataset

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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);
        assertEquals(2.0, d.getEndXValue(0, 1), EPSILON);
        assertEquals(5.0, d.getYValue(0, 1), EPSILON);
    }
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Examples of org.jfree.data.statistics.HistogramDataset

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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);
        assertEquals(1.0, hd.getYValue(0, 1), EPSILON);
        assertEquals(2.0, hd.getStartXValue(0, 2), EPSILON);
        assertEquals(3.0, hd.getEndXValue(0, 2), EPSILON);
        assertEquals(1.0, hd.getYValue(0, 2), EPSILON);
        assertEquals(3.0, hd.getStartXValue(0, 3), EPSILON);
        assertEquals(4.0, hd.getEndXValue(0, 3), EPSILON);
        assertEquals(1.0, hd.getYValue(0, 3), EPSILON);
        assertEquals(4.0, hd.getStartXValue(0, 4), EPSILON);
        assertEquals(5.0, hd.getEndXValue(0, 4), EPSILON);
        assertEquals(2.0, hd.getYValue(0, 4), EPSILON);
    }
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Examples of org.jfree.data.statistics.HistogramDataset

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    public void testBinBoundaries() {
        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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Examples of org.jfree.data.statistics.HistogramDataset

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     * Some checks for bug 1553088.  An IndexOutOfBoundsException is thrown
     * 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);
        assertEquals(0.0, d.getEndXValue(0, 1), EPSILON);
        assertEquals(3.0, d.getYValue(0, 1), EPSILON);
    }
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