Nothing
#' Remove duplicated columns
#'
#' Drops duplicated columns from a data.frame (or other list-like object).
#'
#' @param df a data.frame
#' @return data.frame without duplicated columns
#'
#' @references \url{https://stackoverflow.com/a/58475153/986793}
#' @author \href{https://stackoverflow.com/users/3732271/akrun}{akrun}
#'
#' @examples
#'
#' df <- data.frame(a=1:10, b=1:10, c=2:11)
#'
#' unique_columns(df)
#'
#' @export
unique_columns <- function(df) df[!duplicated(as.list(df))]
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.