Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/18025#discussion_r122630839
--- Diff: R/pkg/R/functions.R ---
@@ -361,10 +361,13 @@ setMethod("column",
#'
#' @rdname corr
#' @name corr
-#' @family math functions
+#' @family aggregate functions
#' @export
#' @aliases corr,Column-method
-#' @examples \dontrun{corr(df$c, df$d)}
+#' @examples
+#' \dontrun{
+#' df <- createDataFrame(cbind(model = rownames(mtcars), mtcars))
--- End diff --
or maybe we should have a newline at the end of every `@example` block
(when there are multiple examples on one Rd)? This way we don't have to know
where goes first
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