Check that the missing data indicator is a scalar

The indicator for missing data should be a length 1, non-NULL scalar.

Usage

check_missing(x, arg = rlang::caller_arg(x), call = rlang::caller_env())

Arguments

x

The provided missing data indicator to check.

arg

The name of the argument.

call

The call stack.

Value

The original value (if the checks pass).

Examples

check_missing(NA)
#> [1] NA