R/c_across.R

In mtfairbanks/gdt: Tidy Interface to 'data.table'

#' Combine values from multiple columns
#'
#' @description
#' `c_across()` works inside of `mutate_rowwise()`. It uses tidyselect so
#' you can easily select multiple variables.
#'
#' @param cols Columns to transform.
#'
#' @export
#'
#' @examples
#' df <- data.table(x = runif(6), y = runif(6), z = runif(6))
#'
#' df %>%
#'   mutate_rowwise(row_mean = mean(c_across(x:z)))
c_across <- function(cols = everything()) {
  abort("c_across() can only be used inside of tidytable verbs")
}