Java Chart.addSeries方法代码示例

import com.xeiam.xchart.Chart; //导入方法依赖的package包/类
/**
 * Creates a frequency bar diagram based on the frequency map.
 *
 * @param freqMap
 *            frequency map
 * @param seriesName
 *            name of the series
 * @return chart
 */
private static Chart makeBarChart(final Map<String, Integer> freqMap,
		final String seriesName) {
	final int frameWidth = 800;
	final int frameHeight = 600;
	// Convert input data for processing
	ArrayList<String> labels = new ArrayList<String>(freqMap.keySet());
	ArrayList<Integer> frequency = new ArrayList<Integer>(freqMap.values());

	// Create Chart
	Chart chart = new ChartBuilder().chartType(ChartType.Bar)
			.width(frameWidth).height(frameHeight).title("Score Histogram")
			.xAxisTitle(seriesName).yAxisTitle("Frequency").build();

	chart.addSeries(seriesName, new ArrayList<String>(labels),
			new ArrayList<Integer>(frequency));

	// Customize Chart
	chart.getStyleManager().setLegendPosition(LegendPosition.InsideNW);

	return chart;
}
 

import com.xeiam.xchart.Chart; //导入方法依赖的package包/类
public static void addPDFSeries(Chart chart, RealDistribution distribution, String desc, int lowerBound, int upperBound) {
    // generates Log data
    List<Number> xData = new ArrayList<Number>();
    List<Number> yData = new ArrayList<Number>();
    int samples = 100;
    double stepSize = (upperBound - lowerBound) / (double) samples;
    for (double x = lowerBound; x <= upperBound; x += stepSize) {
        try {
            double density = distribution.density(x);
            if (! Double.isInfinite(density) && ! Double.isNaN(density)) {
                xData.add(x);
                yData.add(density);
            }
        } catch (Exception e) {
            // ignore
            // some distributions may reject certain values depending on the parameter settings
        }
    }

    Series series = chart.addSeries(desc, xData, yData);
    series.setMarker(SeriesMarker.NONE);
    series.setLineStyle(new BasicStroke(1.2f));
}
 

import com.xeiam.xchart.Chart; //导入方法依赖的package包/类
public static void addCDFSeries(Chart chart, RealDistribution distribution, String desc, int lowerBound, int upperBound) {
    // generates Log data
    List<Number> xData = new ArrayList<Number>();
    List<Number> yData = new ArrayList<Number>();
    int samples = 100;
    double stepSize = (upperBound - lowerBound) / (double) samples;
    for (double x = lowerBound; x <= upperBound; x += stepSize) {
      double density = distribution.cumulativeProbability(x);
      if (! Double.isInfinite(density) && ! Double.isNaN(density)) {
          xData.add(x);
          yData.add(density);
      }
    }

    Series series = chart.addSeries(desc, xData, yData);
    series.setMarker(SeriesMarker.NONE);
    series.setLineStyle(new BasicStroke(1.2f));
}
 

import com.xeiam.xchart.Chart; //导入方法依赖的package包/类
public static Chart createWeeklySubmissionChart( SortedMap<Date,Integer> input, boolean bar) {
	SortedMap<Date,Integer> filledIn = Util.fillInMissing(input, new WeekIncrementer(), 0);
	List<Date> weeks = new ArrayList<Date>();
	List<Number> submissionCounts = new ArrayList<Number>();
	for (Date date : filledIn.keySet()) {
		weeks.add(date);
		submissionCounts.add(filledIn.get(date));
	}

	// Create Chart
	ChartBuilder chartBuilder = new ChartBuilder().
			width(1000).height(300).
			xAxisTitle("Week").yAxisTitle("Submission Count").
			theme(ChartTheme.GGPlot2);
	if (bar) chartBuilder = chartBuilder.chartType(ChartType.Bar);
	Chart chart = chartBuilder.build();

	chart.addSeries("Submission Count", weeks, submissionCounts);

	return chart;
}
 

import com.xeiam.xchart.Chart; //导入方法依赖的package包/类
public static void addPDFSeries(Chart chart, IntegerDistribution distribution, String desc, int lowerBound, int upperBound) {
    // generates Log data
    List<Number> xData = new ArrayList<Number>();
    List<Number> yData = new ArrayList<Number>();
    for (int x = lowerBound; x <= upperBound; x += 1) {
        try {
            double probability = distribution.probability(x);
            if (! Double.isInfinite(probability) && ! Double.isNaN(probability)) {
                xData.add(x);
                yData.add(probability);
            }
        } catch (Exception e) {
            // ignore
            // some distributions may reject certain values depending on the parameter settings
        }
    }

    Series series = chart.addSeries(desc, xData, yData);
    series.setMarker(SeriesMarker.NONE);
    series.setLineStyle(new BasicStroke(1.2f));
}
 

import com.xeiam.xchart.Chart; //导入方法依赖的package包/类
public static void addCDFSeries(Chart chart, IntegerDistribution distribution, String desc,
                                int lowerBound, int upperBound) {
    // generates Log data
    List<Number> xData = new ArrayList<Number>();
    List<Number> yData = new ArrayList<Number>();
    for (int x = lowerBound; x <= upperBound; x += 1) {
      double density = distribution.cumulativeProbability(x);
      if (! Double.isInfinite(density) && ! Double.isNaN(density)) {
          xData.add(x);
          yData.add(density);
      }
    }

    Series series = chart.addSeries(desc, xData, yData);
    series.setMarker(SeriesMarker.NONE);
    series.setLineStyle(new BasicStroke(1.2f));
}
 

import com.xeiam.xchart.Chart; //导入方法依赖的package包/类
private static void addTrend(final Chart chart, final Series series, final List<Object> xdata) {
    final SimpleRegression model = new SimpleRegression();
    final Iterator<? extends Number> y = series.getYData().iterator();
    for (int x = 0; y.hasNext(); x++) {
        model.addData(x, y.next().doubleValue());
    }
    final Color mc = series.getMarkerColor();
    final Color c = new Color(mc.getRed(), mc.getGreen(), mc.getBlue(), 0x60);
    final Series trend = chart.addSeries(series.getName() + " (trend)",
            Arrays.asList(xdata.get(0), xdata.get(xdata.size() - 1)),
            Arrays.asList(model.predict(0), model.predict(xdata.size() - 1))
        );
    trend.setLineColor(c);
    trend.setMarker(SeriesMarker.NONE);
}