validate | R Documentation |
Validate a Condition
validate(expr)
expr |
An object to be evaluated. |
Returns NULL
on success, otherwise returns the error as a string.
N. Frerebeau
Other validation methods:
assert_constant()
,
assert_data
,
assert_length()
,
assert_lower()
,
assert_names()
,
assert_numeric
,
assert_package()
,
assert_square()
,
assert_type()
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