Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/14705#discussion_r75424161
--- Diff: R/pkg/R/functions.R ---
@@ -2702,19 +2710,21 @@ setMethod("from_unixtime", signature(x = "Column"),
#' [12:05,12:10) but not in [12:00,12:05). Windows can support microsecond
precision. Windows in
#' the order of months are not supported.
#'
-#' The time column must be of TimestampType.
-#'
-#' Durations are provided as strings, e.g. '1 second', '1 day 12 hours',
'2 minutes'. Valid
-#' interval strings are 'week', 'day', 'hour', 'minute', 'second',
'millisecond', 'microsecond'.
-#' If the `slideDuration` is not provided, the windows will be tumbling
windows.
-#'
-#' The startTime is the offset with respect to 1970-01-01 00:00:00 UTC
with which to start
-#' window intervals. For example, in order to have hourly tumbling windows
that start 15 minutes
-#' past the hour, e.g. 12:15-13:15, 13:15-14:15... provide `startTime` as
`15 minutes`.
-#'
-#' The output column will be a struct called 'window' by default with the
nested columns 'start'
-#' and 'end'.
-#'
+#' @param x a time Column. Must be of TimestampType.
+#' @param windowDuration a string specifying the width of the window, e.g.
'1 second',
+#' '1 day 12 hours', '2 minutes'. Valid interval
strings are 'week',
+#' 'day', 'hour', 'minute', 'second', 'millisecond',
'microsecond'.
+#' @param slideDuration a string specifying the sliding interval of the
window. Same format as
+#' \code{windowDuration}. A new window will be
generated every
+#' \code{slideDuration}. Must be less than or equal to
+#' the \code{windowDuration}.
+#' @param startTime the offset with respect to 1970-01-01 00:00:00 UTC
with which to start
+#' window intervals. For example, in order to have hourly
tumbling windows
+#' that start 15 minutes past the hour, e.g. 12:15-13:15,
13:15-14:15... provide
+#' \code{startTime} as \code{"15 minutes"}.
+#' @param ... further arguments to be passed to or from other methods.
--- End diff --
should this be
`@param ... currently not used.`
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