Code
derive_var_base(input, by_vars = exprs(USUBJID, PARAMCD, BASETYPE), source_var = AVALC,
new_var = BASEC)
Condition
Error in `signal_duplicate_records()`:
! Input dataset contains multiple baseline records with respect to `USUBJID`, `PARAMCD`, and `BASETYPE`
i Run `admiral::get_duplicates_dataset()` to access the duplicate records
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