felixcheung commented on a change in pull request #23072:
[SPARK-19827][R]spark.ml R API for PIC
URL: https://github.com/apache/spark/pull/23072#discussion_r240491948
##########
File path: R/pkg/R/mllib_clustering.R
##########
@@ -610,3 +616,59 @@ setMethod("write.ml", signature(object = "LDAModel", path
= "character"),
function(object, path, overwrite = FALSE) {
write_internal(object, path, overwrite)
})
+
+#' PowerIterationClustering
+#'
+#' A scalable graph clustering algorithm. Users can call
\code{spark.assignClusters} to
+#' return a cluster assignment for each input vertex.
+#'
Review comment:
remove empty line - empty is significant in roxygen2
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