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# averageQuantity()

Returns the average value from all the samples that match the query.

```
func averageQuantity() -> HKQuantity?
```

## Return Value

If the [`discreteAverage`](/documentation/HealthKit/HKStatisticsOptions/discreteAverage) option was set, this method returns a quantity object containing the average value of all samples matching the query; otherwise, it returns `nil`.

## See Also

[`endDate`](/documentation/HealthKit/HKStatistics/endDate)

The end of the time period included in these statistics.

[`startDate`](/documentation/HealthKit/HKStatistics/startDate)

The start of the time period included in these statistics.


---

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