Example usage for org.jfree.data.general HeatMapDataset getYValue

Introduction

In this page you can find the example usage for org.jfree.data.general HeatMapDataset getYValue.

Prototype

public double getYValue(int yIndex);

Source Link

Document

A convenience method that returns the y-value for the given index.

Usage

From source file:org.jfree.data.general.HeatMapUtilities.java

/**
 * Returns a dataset containing one series that holds a copy of the (y, z)
 * data from one column (x-index) of the specified dataset.
 *
 * @param dataset  the dataset (<code>null</code> not permitted).
 * @param column  the column (x) index./*from  w w w  . ja  va 2 s.  c  o m*/
 * @param seriesName  the series name (<code>null</code> not permitted).
 *
 * @return The dataset.
 */
public static XYDataset extractColumnFromHeatMapDataset(HeatMapDataset dataset, int column,
        Comparable seriesName) {
    XYSeries series = new XYSeries(seriesName);
    int rows = dataset.getYSampleCount();
    for (int r = 0; r < rows; r++) {
        series.add(dataset.getYValue(r), dataset.getZValue(column, r));
    }
    XYSeriesCollection result = new XYSeriesCollection(series);
    return result;
}

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