An array containing all the sources contributing to these statistics.
On This Page
@property(readonly, strong) NSArray<HKSource *> *sources;
If the HKStatisticsOptionSeparateBySource option was specified, this property holds an array of all the sources included in the calculations. If the HKStatisticsOptionSeparateBySource option was not specified, the property contains nil.
The start of the time period included in these statistics.
The end of the time period included in these statistics.
The quantity type of the samples used to calculate these statistics.