summarise: Summarise data

In jeblundell/multiplyr: Data Manipulation with Parallelism and Shared Memory Matrices

Description

Produces a summary statistic for each group or cluster node (the latter case should then be followed up with reduce)

Usage

summarise(.self, ..., auto_compact = NULL)

summarise_(.self, ..., .dots, auto_compact = NULL)

Arguments

.self	Data frame
...	Additional parameters
auto_compact	Compact data after operation
.dots	Workaround for non-standard evaluation

Value

Data frame

See Also

Other data manipulations: mutate, nsa, reduce, transmute, within_group, within_node

Examples

dat <- Multiplyr (x=1:100, G=rep(c("A", "B", "C", "D"), each=25))
dat %>% group_by (G) %>% summarise (xbar = mean(x))
dat %>% shutdown()

jeblundell/multiplyr documentation built on May 19, 2019, 12:39 a.m.