private static XYDatasetMinMax createDeltaDataset(
String name, SortedMap<TimeAxisKey, DiffStat> aggregatedDiffstats) {
TimeSeriesCollection dataset = new TimeSeriesCollection();
int minimum = 0;
int maximum = 0;
TimeSeries addedSeries = new TimeSeries(name);
TimeSeries removedSeries = new TimeSeries(name);
for (Entry<TimeAxisKey, DiffStat> entry : aggregatedDiffstats.entrySet()) {
TimeAxisKey timeAxisKey = entry.getKey();
DiffStat diffStat = entry.getValue();
RegularTimePeriod period = timeAxisKey.toPeriod();
int added = diffStat.added();
maximum = max(maximum, added);
addedSeries.add(period, Integer.valueOf(added));
int removed = -diffStat.removed();
minimum = min(minimum, removed);
removedSeries.add(period, Integer.valueOf(removed));
}
dataset.addSeries(addedSeries);
dataset.addSeries(removedSeries);
return new XYDatasetMinMax(dataset, minimum, maximum);
}
