Github user felixcheung commented on a diff in the pull request: https://github.com/apache/spark/pull/18366#discussion_r123688817 --- Diff: R/pkg/R/functions.R --- @@ -833,21 +838,21 @@ setMethod("hour", column(jc) }) -#' initcap -#' -#' Returns a new string column by converting the first letter of each word to uppercase. -#' Words are delimited by whitespace. -#' -#' For example, "hello world" will become "Hello World". -#' -#' @param x Column to compute on. +#' @details +#' \code{initcap}: Returns a new string column by converting the first letter of +#' each word to uppercase. Words are delimited by whitespace. For example, "hello world" +#' will become "Hello World". #' -#' @rdname initcap -#' @name initcap -#' @family string functions -#' @aliases initcap,Column-method +#' @rdname column_string_functions +#' @aliases initcap initcap,Column-method #' @export -#' @examples \dontrun{initcap(df$c)} +#' @examples +#' +#' \dontrun{ +#' tmp <- mutate(df, SexLower = lower(df$Sex), AgeUpper = upper(df$age)) +#' head(tmp) +#' tmp2 <- mutate(tmp, s1 = initcap(tmp$SexLower), s2 = reverse(df$Sex)) --- End diff -- since `SexLower` is one word I think? is there another column with multiple word?
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