invalid | R Documentation |
An object is valid if it is not null, not missing (NA), and is not an empty vector. Note that this is per se not vectorised, because a non-empty list or vector is valid as such.
invalid(x) valid(x)
x |
Any object, value or NULL |
logical
valid
: x is not invalid
invalid(NULL) # TRUE invalid(NA) # TRUE invalid(list()) # TRUE invalid("a") # FALSE invalid(c(1,2,3)) # FALSE
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