Return grouping variables

group_vars() returns a character vector; groups() returns a list of symbols.

groups(x)

group_vars(x)

Arguments

x	A tbl()

See also

group_cols() for matching grouping variables in selection contexts.

Other grouping functions: group_by_all, group_by, group_indices, group_keys, group_map, group_nest, group_rows, group_size, group_trim

Examples

df <- tibble(x = 1, y = 2) %>% group_by(x, y)
group_vars(df)
#> [1] "x" "y"
groups(df)
#> [[1]]
#> x
#> 
#> [[2]]
#> y
#>