select: Retain only specified variables

In multiplyr: Data Manipulation with Parallelism and Shared Memory Matrices

Description

Takes a list of columns and returns a data frame with only those columns and in the order specified

Usage

select(.self, ...)

select_(.self, ..., .dots)

Arguments

.self	Data frame
...	Additional parameters
.dots	Workaround for non-standard evaluation

Value

Data frame

See Also

Other column manipulations: add_rownames, define, rename, undefine

Examples

dat <- Multiplyr (x = 1:100, y = 100:1, z = rep(123, 100))
dat %>% select (y, x)
dat %>% shutdown()

multiplyr documentation built on May 30, 2017, 12:09 a.m.