Github user sun-rui commented on a diff in the pull request:
https://github.com/apache/spark/pull/8962#discussion_r41087218
--- Diff: R/pkg/R/DataFrame.R ---
@@ -1873,3 +1872,29 @@ setMethod("as.data.frame",
collect(x)
}
)
+
+#' freqItems
+#'
+#' Finding frequent items for columns, possibly with false positives.
+#' Using the frequent element count algorithm described in
+#' \url{http://dx.doi.org/10.1145/762471.762473}, proposed by Karp,
Schenker, and Papadimitriou.
+#'
+#' @param col A list of columns to search frequent items in.
--- End diff --
Miss the param for the DataFrame.
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