Nothing
Code
is_unsupervised_weights(3)
Condition
Error in `is_unsupervised_weights()`:
! Must be be a `case_weights` variable.
Code
too_many_case_weights(c("var1", "var2"))
Condition
Error:
! There should only be a single column with the role `case_weights`.
i In these data, there are 2 columns: `var1` and `var2`.
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