This is a method for the dplyr transmute() generic. It is translated to
the j argument of [.data.table.
Usage
# S3 method for dtplyr_step
transmute(.data, ...)Arguments
- .data
A
lazy_dt().- ...
<data-masking> Name-value pairs. The name gives the name of the column in the output, and the value should evaluate to a vector.
Examples
library(dplyr, warn.conflicts = FALSE)
dt <- lazy_dt(dplyr::starwars)
dt %>% transmute(name, sh = paste0(species, "/", homeworld))
#> Source: local data table [87 x 2]
#> Call: `_DT38`[, .(name = name, sh = paste0(species, "/", homeworld))]
#>
#> name sh
#> <chr> <chr>
#> 1 Luke Skywalker Human/Tatooine
#> 2 C-3PO Droid/Tatooine
#> 3 R2-D2 Droid/Naboo
#> 4 Darth Vader Human/Tatooine
#> 5 Leia Organa Human/Alderaan
#> 6 Owen Lars Human/Tatooine
#> # … with 81 more rows
#>
#> # Use as.data.table()/as.data.frame()/as_tibble() to access results