ll_assert_labelled: Verify that x is a valid labelled variable
Description
Verify that x is a valid labelled variable satisfying the (minimal)
specification inherent in the parameter documentation of the
haven::labelled() function for haven_labelled objects.
Usage
ll_assert_labelled(x)
Value
Invisibly returns x if the check is successful.
Arguments
x
A labelled variable
See Also
Other labelled light:
ll_labelled(),
ll_to_character(),
ll_val_labels(),
ll_var_label(),
threadbare()