extract {magrittr}

Aliases

Description

magrittr provides a series of aliases which can be more pleasant to use when composing chains using the %>% operator.

Details

Currently implemented aliases are

extract	`[`
extract2	`[[`
inset	`[<-`
inset2	`[[<-`
use_series	`$`
add	`+`
subtract	`-`
multiply_by	`*`
raise_to_power	`^`
multiply_by_matrix	`%*%`
divide_by	`/`
divide_by_int	`%/%`
mod	`%%`
is_in	`%in%`
and	`&`
or	`|`
equals	`==`
is_greater_than	`>`
is_weakly_greater_than	`>=`
is_less_than	`<`
is_weakly_less_than	`<=`
not (`n'est pas`)	`!`
set_colnames	`colnames<-`
set_rownames	`rownames<-`
set_names	`names<-`
set_class	`class<-`
set_attributes	`attributes<-`
set_attr	`attr<-`

Examples

 iris %>%
   extract(, 1:4) %>%
   head

good.times <-
  Sys.Date() %>%
  as.POSIXct %>%
  seq(by = "15 mins", length.out = 100) %>%
  data.frame(timestamp = .)

good.times$quarter <-
  good.times %>%
  use_series(timestamp) %>%
  format("%M") %>%
  as.numeric %>%
  divide_by_int(15) %>%
  add(1)