[GitHub] spark pull request #18786: [SPARK-21584][SQL][SparkR] Update R method for su...

[felixcheung <gi...@git.apache.org>]

Github user felixcheung commented on a diff in the pull request:

    https://github.com/apache/spark/pull/18786#discussion_r130514066
  
    --- Diff: R/pkg/R/DataFrame.R ---
    @@ -2973,15 +2974,51 @@ setMethod("describe",
                 dataFrame(sdf)
               })
     
    +#' summary
    +#'
    +#' Computes specified statistics for numeric and string columns.
    +#'
    +#' Available statistics are:
    +#'
    +#' - count
    +#' - mean
    +#' - stddev
    +#' - min
    +#' - max
    +#' - arbitrary approximate percentiles specified as a percentage (eg, 75%)
    +#'
    +#' If no statistics are given, this function computes count, mean, stddev, min,
    +#' approximate quartiles (percentiles at 25%, 50%, and 75%), and max.
    --- End diff --
    
    also, don't use empty line - like #' - the 2nd one becomes the "details" section in the doc as formatted by roxygen2


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