Generate a unique id for each group
group_indices(.data, ...)
| .data | a tbl |
|---|---|
| ... | Variables to group by. All tbls accept variable names, some will also 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