Generate a unique id for each group
group_indices(.data, ...)
.data | a tbl |
---|---|
... | Variables to group by. All tbls accept variable names. Some tbls will accept functions of variables. Duplicated groups will be silently dropped. |
group_indices(mtcars, cyl)#> [1] 2 2 1 2 3 2 3 1 1 2 2 3 3 3 3 3 3 1 1 1 1 3 3 3 3 1 1 1 3 2 3 1