is.null.na: Function to check whether an object is NA
or NULL
Usage
is.null.na(x, negating = FALSE)
Value
Logical, depending on negating
:
if negating
is FALSE
, it returns TRUE
if x
is NA
or NULL
;
if negating
is TRUE
, it returns TRUE
if x
is neither NA
nor NULL
.
Arguments
- x
Object on which to operate
- negating
Whether to return the negation of the result
Author
Telarico, Fabio Ashtar