// set up a collection of predicted series
XYIntervalSeriesCollection xyDataset = new XYIntervalSeriesCollection();
XYIntervalSeries targetSeries = new XYIntervalSeries(targetName, false,
false);
xyDataset.addSeries(targetSeries);
// for (int i = 0; i < preds.size(); i++) {
for (int z = 0; z < stepsToPlot.size(); z++) {
int i = stepsToPlot.get(z);
i--;
// ignore out of range steps