Question

I am using ChartFactory.createStackedXYAreaChart() in my application using JFreeChart.
This chart needs TableXYDataset in it’s argument at the time of creation. My problem is that I am using different series to add in charts, but it does not allow me to add differant series to the XYDataset. I am using the following code:

XYSeries series1 = new XYSeries("First");

series1.add(0.1,25);
series1.add(0.2,43);
series1.add(0.5,70);
series1.add(0.64,94);
series1.add(0.9,112);

XYSeries series2 = new XYSeries("Second");

series2.add(0.9,112);
series2.add(1.1,150);
series2.add(1.3,175);
series2.add(1.5,200);
series2.add(1.7,225);
series2.add(1.9,250);

XYSeriesCollection dataset = new XYSeriesCollection();
dataset.addSeries(series1);
dataset.addSeries(series2);

return dataset;

Please help me.

Answer 1

DefaultTableXYDataset is a TableXYDataset that has an addSeries(XYSeries series) method.

Addendum: Note that duplicates are not allowed. For example,

XYSeries series1 = new XYSeries("First", true, false);
series1.add(0.1, 25);
series1.add(0.2, 43);
series1.add(0.5, 70);
series1.add(0.64, 94);
series1.add(0.9, 112);

XYSeries series2 = new XYSeries("Second", true, false);
series2.add(0.9, 112);
series2.add(1.1, 150);
series2.add(1.3, 175);
series2.add(1.5, 200);
series2.add(1.7, 225);
series2.add(1.9, 250);

DefaultTableXYDataset dataset = new DefaultTableXYDataset();
dataset.addSeries(series1);
dataset.addSeries(series2);
return dataset;