Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/18025#discussion_r122132206
--- Diff: R/pkg/R/functions.R ---
@@ -85,17 +100,20 @@ setMethod("acos",
column(jc)
})
-#' Returns the approximate number of distinct items in a group
+#' @section Details:
+#' \code{approxCountDistinct}: Returns the approximate number of distinct
items in a group.
#'
-#' Returns the approximate number of distinct items in a group. This is a
column
-#' aggregate function.
-#'
-#' @rdname approxCountDistinct
-#' @name approxCountDistinct
-#' @return the approximate number of distinct items in a group.
+#' @rdname column_aggregate_functions
#' @export
-#' @aliases approxCountDistinct,Column-method
-#' @examples \dontrun{approxCountDistinct(df$c)}
+#' @aliases approxCountDistinct approxCountDistinct,Column-method
+#' @examples
+#'
--- End diff --
extra newline?
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