group_size {dplyr}R Documentation

Calculate group sizes.

Description

Calculate group sizes.

Usage

group_size(x)

n_groups(x)

Arguments

x

a grouped tbl

See Also

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

Examples

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)
}

[Package dplyr version 0.8.5 Index]