Improve missing value handling in compute_egfr()

[jeffreyad]

Feature Idea

Currently if there is a missing values for SEX in compute_egfr() the error message below results. Perhaps a warning and missing value should be returned instead.

Error in `mutate()`:
ℹ In argument: `CRCL = compute_egfr(...)`.
Caused by error in `compute_egfr()`:
! Argument `sex` must be <character> with values "M" and "F".
Run `rlang::last_trace()` to see where the error occurred.

Relevant Input

No response

Relevant Output

No response

Reproducible Example/Pseudo Code

No response

[bundfussr]

Makes sense to me. I wonder if we need a warning. If one the other arguments like weight is NA, NA is returned without any warning. I think this is the usual behavior in R.