Github user actuaryzhang commented on a diff in the pull request:
https://github.com/apache/spark/pull/18025#discussion_r119538499
--- Diff: R/pkg/R/functions.R ---
@@ -1630,18 +1609,12 @@ setMethod("sqrt",
column(jc)
})
-#' sum
-#'
-#' Aggregate function: returns the sum of all values in the expression.
+#' @section Details:
+#' \code{sum}: Returns the sum of all values in the expression.
#'
-#' @param x Column to compute on.
-#'
-#' @rdname sum
-#' @name sum
-#' @family aggregate functions
-#' @aliases sum,Column-method
+#' @rdname column_aggregate_functions
+#' @aliases sum sum,Column-method
#' @export
-#' @examples \dontrun{sum(df$c)}
--- End diff --
Good catch. Added to example.
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