multiplyr (version 0.1.1)

n: Number of items in current group

Description

Number of items in current group

Usage

n()

Value

Number of items in current group (or node if ungrouped)

See Also

Other utility functions: between, cumall, cumany, cummean, distribute, first, lag, last, lead, n_distinct, n_groups, nth

Examples

dat <- Multiplyr (x=1:100, G=rep(1:4, each=25), cl=2)
dat %>% group_by (G)
dat %>% summarise (G.size = n())
dat %>% shutdown()