Nothing
Code
mf %>% do(nrow(.))
Condition
Error in `label_output_dataframe()`:
! Results must be data frames
Problems at positions 1 and 2
Code
mf %>% do(nrow = nrow(.), ncol(.))
Condition
Error in `named_args()`:
! Arguments to `do()` must either be all named or all unnamed
Code
mf %>% do(nrow(.), ncol(.))
Condition
Error in `named_args()`:
! Can only supply single unnamed argument to `do()`
Code
mf %>% do(.f = nrow)
Condition
Error in `named_args()`:
! `do()` syntax changed in dplyr 0.2. Please see documentation for details
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