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

Introduction

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

Prototype

@Override
public double getEndXValue(int series, int item) 

Source Link

Document

Returns the end x-value (as a double primitive) for an item within a series.

Usage

From source file:biz.ixnay.pivot.charts.skin.jfree.HistogramViewSkin.java

public Element getElementAt(int x, int y) {
    ChartView.Element element = null;

    ChartEntity chartEntity = getChartEntityAt(x, y);
    if (chartEntity instanceof XYItemEntity) {
        XYItemEntity xyItemEntity = (XYItemEntity) chartEntity;
        HistogramDataset dataSet = (HistogramDataset) ((XYItemEntity) chartEntity).getDataset();
        int series = xyItemEntity.getSeriesIndex();
        int item = xyItemEntity.getItem();

        double binStart = dataSet.getStartXValue(series, item);
        double binEnd = dataSet.getEndXValue(series, item);
        double binValue = dataSet.getXValue(series, item);
        double frequency = dataSet.getYValue(series, item);

        element = new HistogramView.HistogramBin(series, item, binStart, binValue, binEnd, frequency);

    }//  w w  w  .ja v a 2s .c  om
    return element;
}

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From source file:org.jfree.data.statistics.HistogramDatasetTest.java

/**
 * Some checks for the addSeries() method.
 *//*  w ww.  j a va2  s.co m*/
@Test
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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From source file:org.jfree.data.statistics.HistogramDatasetTest.java

/**
 * Another check for the addSeries() method.
 *//*from   ww  w . j a v  a  2  s .  co m*/
@Test
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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From source file:org.jfree.data.statistics.HistogramDatasetTest.java

/**
 * Some checks for bug 1553088.  An IndexOutOfBoundsException is thrown
 * when a data value is *very* close to the upper limit of the last bin.
 *///from  w  ww.j a v a  2  s.  c o m
@Test
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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From source file:org.jfree.data.statistics.HistogramDatasetTest.java

/**
 * This test is derived from a reported bug.
 *//*  w  w  w  .  j  a v a2s .  c o  m*/
@Test
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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