Example usage for org.jfree.data.xy XYSeries getKey

Introduction

In this page you can find the example usage for org.jfree.data.xy XYSeries getKey.

Prototype

public Comparable getKey() 

Source Link

Document

Returns the key for the series.

Usage

From source file:org.gephi.ui.utils.ChartsUtils.java

/**
 * Calculates linear regression points from a XYSeriesCollection data set
 * Code obtained from http://pwnt.be/2009/08/17/simple-linear-regression-with-jfreechart
 *//*ww w  .  j a v  a  2s  .c om*/
private static XYDataset regress(XYSeriesCollection data) {
    // Determine bounds
    double xMin = Double.MAX_VALUE, xMax = 0;
    for (int i = 0; i < data.getSeriesCount(); i++) {
        XYSeries ser = data.getSeries(i);
        for (int j = 0; j < ser.getItemCount(); j++) {
            double x = ser.getX(j).doubleValue();
            if (x < xMin) {
                xMin = x;
            }
            if (x > xMax) {
                xMax = x;
            }
        }
    }
    // Create 2-point series for each of the original series
    XYSeriesCollection coll = new XYSeriesCollection();
    for (int i = 0; i < data.getSeriesCount(); i++) {
        XYSeries ser = data.getSeries(i);
        int n = ser.getItemCount();
        double sx = 0, sy = 0, sxx = 0, sxy = 0, syy = 0;
        for (int j = 0; j < n; j++) {
            double x = ser.getX(j).doubleValue();
            double y = ser.getY(j).doubleValue();
            sx += x;
            sy += y;
            sxx += x * x;
            sxy += x * y;
            syy += y * y;
        }
        double b = (n * sxy - sx * sy) / (n * sxx - sx * sx);
        double a = sy / n - b * sx / n;
        XYSeries regr = new XYSeries(ser.getKey());
        regr.add(xMin, a + b * xMin);
        regr.add(xMax, a + b * xMax);
        coll.addSeries(regr);
    }
    return coll;
}

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From source file:org.jfree.data.xy.XYSeriesCollection.java

/**
 * Returns a series from the collection.
 *
 * @param key  the key (<code>null</code> not permitted).
 *
 * @return The series with the specified key.
 *
 * @throws UnknownKeyException if <code>key</code> is not found in the
 *         collection./*from w w w.j  ava 2  s .  c  om*/
 *
 * @since 1.0.9
 */
public XYSeries getSeries(Comparable key) {
    ParamChecks.nullNotPermitted(key, "key");
    Iterator iterator = this.data.iterator();
    while (iterator.hasNext()) {
        XYSeries series = (XYSeries) iterator.next();
        if (key.equals(series.getKey())) {
            return series;
        }
    }
    throw new UnknownKeyException("Key not found: " + key);
}

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From source file:org.jfree.data.xy.XYSeriesCollection.java

/**
 * Returns the index of the series with the specified key, or -1 if no
 * series has that key./* w w  w . j a va2 s  .  c o m*/
 * 
 * @param key  the key (<code>null</code> not permitted).
 * 
 * @return The index.
 * 
 * @since 1.0.14
 */
public int getSeriesIndex(Comparable key) {
    ParamChecks.nullNotPermitted(key, "key");
    int seriesCount = getSeriesCount();
    for (int i = 0; i < seriesCount; i++) {
        XYSeries series = (XYSeries) this.data.get(i);
        if (key.equals(series.getKey())) {
            return i;
        }
    }
    return -1;
}

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From source file:org.jfree.data.xy.XYSeriesCollection.java

/**
 * Adds a series to the collection and sends a {@link DatasetChangeEvent}
 * to all registered listeners.//from   w w  w. jav  a  2  s  . com
 *
 * @param series  the series (<code>null</code> not permitted).
 * 
 * @throws IllegalArgumentException if the key for the series is null or
 *     not unique within the dataset.
 */
public void addSeries(XYSeries series) {
    ParamChecks.nullNotPermitted(series, "series");
    if (getSeriesIndex(series.getKey()) >= 0) {
        throw new IllegalArgumentException(
                "This dataset already contains a series with the key " + series.getKey());
    }
    this.data.add(series);
    series.addChangeListener(this);
    series.addVetoableChangeListener(this);
    fireDatasetChanged();
}

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From source file:com.AandR.beans.plotting.LinePlotPanel.LinePlotPanel.java

public void removeSeries(Comparable key) {
    XYSeries series = plotSeries.getSeries(key);
    plotSeries.removeSeries(series);//www. ja  v a 2  s .  c om
    plotsMap.remove(series.getKey().toString());
}

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From source file:org.jfree.data.xy.XYSeriesTest.java

@Test
public void testSetKey() {
    XYSeries s1 = new XYSeries("S");
    s1.setKey("S1");
    assertEquals("S1", s1.getKey());

    XYSeriesCollection c = new XYSeriesCollection();
    c.addSeries(s1);/* ww w . j av  a  2  s  . c  o m*/
    XYSeries s2 = new XYSeries("S2");
    c.addSeries(s2);

    // now we should be allowed to change s1's key to anything but "S2"
    s1.setKey("OK");
    assertEquals("OK", s1.getKey());

    try {
        s1.setKey("S2");
        fail("Expect an exception here.");
    } catch (IllegalArgumentException e) {
        // OK
    }

    // after s1 is removed from the collection, we should be able to set
    // the key to anything we want...
    c.removeSeries(s1);
    s1.setKey("S2");

    // check that removing by index also works
    s1.setKey("S1");
    c.addSeries(s1);
    c.removeSeries(1);
    s1.setKey("S2");
}

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From source file:org.jfree.data.xy.junit.XYSeriesCollectionTest.java

/**
 * Test that a series belonging to a collection can be renamed (in fact, 
 * because of a bug this was not possible in JFreeChart 1.0.14).
 *///from   www .  j  a v a  2  s  .  c  o m
public void testSeriesRename() {
    // first check that a valid renaming works
    XYSeries series1 = new XYSeries("A");
    XYSeries series2 = new XYSeries("B");
    XYSeriesCollection collection = new XYSeriesCollection();
    collection.addSeries(series1);
    collection.addSeries(series2);
    series1.setKey("C");
    assertEquals("C", collection.getSeries(0).getKey());

    // next, check that setting a duplicate key fails
    try {
        series2.setKey("C");
    } catch (IllegalArgumentException e) {
        // expected
    }
    assertEquals("B", series2.getKey()); // the series name should not 
    // change because "C" is already the key for the other series in the
    // collection
}

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From source file:org.pentaho.plugin.jfreereport.reportcharts.XYChartExpression.java

protected TableXYDataset convertToTable(final XYSeriesCollection xyDataset) {
    final ExtCategoryTableXYDataset tableXYDataset = new ExtCategoryTableXYDataset();
    final int count = xyDataset.getSeriesCount();
    for (int i = 0; i < count; i++) {
        final XYSeries timeSeries = xyDataset.getSeries(i);
        final Comparable key = timeSeries.getKey();
        final int itemCount = timeSeries.getItemCount();
        for (int ic = 0; ic < itemCount; ic++) {
            final XYDataItem seriesDataItem = timeSeries.getDataItem(ic);
            tableXYDataset.add(seriesDataItem.getX(), seriesDataItem.getY(), key, false);
        }//w  w w . ja v  a 2  s .  com
    }
    return tableXYDataset;
}

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From source file:org.jfree.data.xy.XYSeriesCollectionTest.java

/**
 * Test that a series belonging to a collection can be renamed (in fact, 
 * because of a bug this was not possible in JFreeChart 1.0.14).
 *//*w w w .ja  v a  2  s  .com*/
@Test
public void testSeriesRename() {
    // first check that a valid renaming works
    XYSeries series1 = new XYSeries("A");
    XYSeries series2 = new XYSeries("B");
    XYSeriesCollection collection = new XYSeriesCollection();
    collection.addSeries(series1);
    collection.addSeries(series2);
    series1.setKey("C");
    assertEquals("C", collection.getSeries(0).getKey());

    // next, check that setting a duplicate key fails
    try {
        series2.setKey("C");
        fail("Expected an IllegalArgumentException.");
    } catch (IllegalArgumentException e) {
        // expected
    }
    assertEquals("B", series2.getKey()); // the series name should not 
    // change because "C" is already the key for the other series in the
    // collection
}

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From source file:org.esa.snap.rcp.statistics.ScatterPlotPanel.java

private XYIntervalSeries computeAcceptableDeviationData(double lowerBound, double upperBound) {
    final XYSeries identity = DatasetUtilities.sampleFunction2DToSeries(x -> x, lowerBound, upperBound, 100,
            "1:1 line");
    final XYIntervalSeries xyIntervalSeries = new XYIntervalSeries(identity.getKey());
    for (int i = 0; i < identity.getItemCount(); i++) {
        XYDataItem item = identity.getDataItem(i);
        final double x = item.getXValue();
        final double y = item.getYValue();
        if (scatterPlotModel.showAcceptableDeviation) {
            final double acceptableDeviation = scatterPlotModel.acceptableDeviationInterval;
            final double xOff = acceptableDeviation * x / 100;
            final double yOff = acceptableDeviation * y / 100;
            xyIntervalSeries.add(x, x - xOff, x + xOff, y, y - yOff, y + yOff);
        } else {//from ww  w . j  a  v a  2  s . c om
            xyIntervalSeries.add(x, x, x, y, y, y);
        }
    }
    return xyIntervalSeries;
}

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