group_size {dplyr} | R Documentation |
Calculate group sizes.
group_size(x) n_groups(x)
x |
a grouped tbl |
Other grouping functions: group_by_all
,
group_by
, group_indices
,
group_keys
, group_map
,
group_nest
, group_rows
,
group_trim
, groups
if (require("nycflights13")) { by_day <- flights %>% group_by(year, month, day) n_groups(by_day) group_size(by_day) by_dest <- flights %>% group_by(dest) n_groups(by_dest) group_size(by_dest) }