## ----include = FALSE---------------------------------------------------------- knitr::opts_chunk$set(comment = "#>", collapse = TRUE) ## ----------------------------------------------------------------------------- #' Sum of vector elements #' #' `sum` returns the sum of all the values present in its arguments. #' #' This is a generic function: methods can be defined for it directly #' or via the [Summary()] group generic. For this to work properly, #' the arguments `...` should be unnamed, and dispatch is on the #' first argument. sum <- function(..., na.rm = TRUE) {} ## ----------------------------------------------------------------------------- #' Sum of vector elements #' #' @description #' `sum` returns the sum of all the values present in its arguments. #' #' @details #' This is a generic function: methods can be defined for it directly #' or via the [Summary()] group generic. For this to work properly, #' the arguments `...` should be unnamed, and dispatch is on the #' first argument.