Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/20031#discussion_r158371712
--- Diff: R/pkg/R/functions.R ---
@@ -41,9 +41,15 @@ NULL
#' @param x Column to compute on. In \code{window}, it must be a time
Column of
#' \code{TimestampType}.
#' @param format For \code{to_date} and \code{to_timestamp}, it is the
string to use to parse
-#' Column \code{x} to DateType or TimestampType. For
\code{trunc}, it is the string
-#' to use to specify the truncation method. For example,
"year", "yyyy", "yy" for
-#' truncate by year, or "month", "mon", "mm" for truncate by
month.
+#' Column \code{x} to DateType or TimestampType.
+#'
--- End diff --
I'm pretty sure these whitespace will be stripped by roxygen2.
use item if you think that makes sense, otherwise it might be better to
keep as a single paragraph
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