ARRAY_STDDEV_POP()
All functions > ARRAY > ARRAY_STDDEV_POP()
Returns the population standard deviation (divide by N) of numeric array elements as a DOUBLE.
Signatures
Returns: Population standard deviation
ARRAY_STDDEV_POP(array: ARRAY<T>) → DOUBLE sql
| Parameter | Type | Required | Description |
|---|---|---|---|
array | ARRAY<T> | Yes | Numeric array |
Notes
- Ignores NULL elements
- Returns NULL for an empty array or an array of only NULLs
See also
Examples
FeatureQL
SELECT
f1 := ARRAY_STDDEV_POP(ARRAY[2, 4, 4, 4, 5, 5, 7, 9]) -- Population stddev
;Result
| f1 VARCHAR |
|---|
| 2.0 |
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