assert_missing() and assert_infinite() check if an object contains any
missing (NA, NaN) or infinite (Inf) value.
assert_unique() checks if an object contains duplicated elements.
assert_missing(x)assert_infinite(x)
assert_unique(x)
Throws an error, if any, and returns x invisibly otherwise.
An object to be checked.
N. Frerebeau
Other validation methods:
assert_constant(),
assert_length(),
assert_lower(),
assert_names(),
assert_numeric,
assert_package(),
assert_square(),
assert_type(),
validate()