Nothing
Code
nest(dat, .by = "hospital")
Condition
Error in `nest.incidence2()`:
! `.by` argument cannot be used in `nest.incidence2()` as the groupings are implicit.
Code
nest(dat, .names_sep = "-")
Condition
Error in `nest.incidence2()`:
! `.names_sep` argument cannot be used with `nest.incidence2()`.
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