Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/18025#discussion_r122133612
--- Diff: R/pkg/R/functions.R ---
@@ -3948,26 +3869,18 @@ setMethod("grouping_bit",
column(jc)
})
-#' grouping_id
-#'
-#' Returns the level of grouping.
-#'
+#' @section Details:
+#' \code{grouping_id}: Returns the level of grouping.
#' Equals to \code{
#' grouping_bit(c1) * 2^(n - 1) + grouping_bit(c2) * 2^(n - 2) + ... +
grouping_bit(cn)
#' }
#'
-#' @param x Column to compute on
-#' @param ... additional Column(s) (optional).
--- End diff --
ditto here
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