has
Composes a function that identifies, point-wise, where this function's field result has data across its extent. The function result values are true where this function's field result has data.
The function result values are false where this function's field result has no data.
All values in the result have data.
The function result extent equals that of this function's field result.
Return
A function that identifies where this function's field result has data.
Since
300.0.0