/**
* Get data between two points in delta form.
*
* @param desc The data description.
* @param index The index to get data from.
* @return The requested data.
*/
private double getDataDeltaChange(final TemporalDataDescription desc, final int index) {
if (index == 0) {
return 0.0;
}
final TemporalPoint point = this.points.get(index);
final TemporalPoint previousPoint = this.points.get(index - 1);
return point.getData(desc.getIndex()) - previousPoint.getData(desc.getIndex());
}
/**
* Get data between two points in percent form.
*
* @param desc The data description.
* @param index The index to get data from.
* @return The requested data.
*/
private double getDataPercentChange(final TemporalDataDescription desc, final int index) {
if (index == 0) {
return 0.0;
}
final TemporalPoint point = this.points.get(index);
final TemporalPoint previousPoint = this.points.get(index - 1);
final double currentValue = point.getData(desc.getIndex());
final double previousValue = previousPoint.getData(desc.getIndex());
return (currentValue - previousValue) / previousValue;
}
/**
* Get data between two points in raw form.
*
* @param desc The data description.
* @param index The index to get data from.
* @return The requested data.
*/
private double getDataRAW(final TemporalDataDescription desc, final int index) {
final TemporalPoint point = this.points.get(index - 1);
return point.getData(desc.getIndex());
}