Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/11336#discussion_r84993459
--- Diff: R/pkg/R/DataFrame.R ---
@@ -1166,12 +1166,13 @@ setMethod("take",
collect(limited)
})
-#' Head
-#'
-#' Return the first \code{num} rows of a SparkDataFrame as a R data.frame.
If \code{num} is not
-#' specified, then head() returns the first 6 rows as with R data.frame.
-#'
-#' @param x a SparkDataFrame.
+#' Return the first part of a SparkDataFrame or Column
+#'
+#' If \code{x} is a SparkDataFrame, its first
+#' rows will be returned as a data.frame. If the dataset is a
\code{Column}, its first
+#' elements will be returned as a vector. The number of elements to be
returned
+#' is given by parameter \code{num}. Default value for \code{num} is 6.
+#' @param x a SparkDataFrame or Column
--- End diff --
Same go for "show", I believe:
https://github.com/olarayej/spark/blob/1338d71a8f8f1387e08326851e15fcc84d5092f9/R/pkg/R/DataFrame.R#L230
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