nsa: No strings attached mode

In multiplyr: Data Manipulation with Parallelism and Shared Memory Matrices

Description

This function may be used to set or unset whether a data frame is in no strings attached mode, potentially speeding up various operations.

Usage

nsa(.self, enabled = TRUE)

Arguments

.self	Data frame
enabled	TRUE to enable, FALSE to disable. Defaults to TRUE.

Details

This function will place a data frame in no strings attached mode, which disables translation of character values to and from numeric representation. This allows for much faster calculations.

Value

Data frame

See Also

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

Examples

dat <- Multiplyr (G=rep(c("A", "B", "C", "D"), length.out=100))
dat %>% nsa () %>% mutate (G=max(G)) %>% nsa(FALSE)
dat %>% shutdown()

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