Github user felixcheung commented on a diff in the pull request: https://github.com/apache/spark/pull/14776#discussion_r76097803 --- Diff: R/pkg/R/DataFrame.R --- @@ -212,9 +212,9 @@ setMethod("showDF", #' show #' -#' Print the SparkDataFrame column names and types +#' Print class and type information of a SparkR object. #' -#' @param object a SparkDataFrame. +#' @param object a SparkR object. Can be a SparkDataFrame, Column, GroupedData, WindowSpec. --- End diff -- ok this is the case the existing generic from method is used. let's leave it then.
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