Github user wangmiao1981 commented on a diff in the pull request: https://github.com/apache/spark/pull/16566#discussion_r97017872 --- Diff: R/pkg/R/mllib_clustering.R --- @@ -38,6 +45,149 @@ setClass("KMeansModel", representation(jobj = "jobj")) #' @note LDAModel since 2.1.0 setClass("LDAModel", representation(jobj = "jobj")) +#' Bisecting K-Means Clustering Model +#' +#' Fits a bisecting k-means clustering model against a Spark DataFrame. +#' Users can call \code{summary} to print a summary of the fitted model, \code{predict} to make +#' predictions on new data, and \code{write.ml}/\code{read.ml} to save/load fitted models. +#' +#' @param data a SparkDataFrame for training. +#' @param formula a symbolic description of the model to be fitted. Currently only a few formula +#' operators are supported, including '~', '.', ':', '+', and '-'. +#' Note that the response variable of formula is empty in spark.bisectingKmeans. +#' @param k the desired number of leaf clusters. Must be > 1. +#' The actual number could be smaller if there are no divisible leaf clusters. +#' @param maxIter maximum iteration number. +#' @param seed the random seed. +#' @param minDivisibleClusterSize The minimum number of points (if greater than or equal to 1.0) +#' or the minimum proportion of points (if less than 1.0) of a divisible cluster. +#' Note that it is an advanced. The default value should be enough --- End diff -- In scala, it uses `@group expertParam` in the document and the API document shows `(expert-only) Parameters`. I will change it to `it is an expert parameter`.
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