Github user huaxingao commented on a diff in the pull request:
https://github.com/apache/spark/pull/21710#discussion_r203229733
--- Diff: R/pkg/R/generics.R ---
@@ -1415,6 +1415,13 @@ setGeneric("spark.freqItemsets", function(object) {
standardGeneric("spark.freqI
#' @rdname spark.fpGrowth
setGeneric("spark.associationRules", function(object) {
standardGeneric("spark.associationRules") })
+#' @rdname spark.prefixSpan
+setGeneric("spark.prefixSpan", function(...) {
standardGeneric("spark.prefixSpan") })
+
+#' @rdname spark.prefixSpan
--- End diff --
@viirya Thanks for your review.
Do you mean to use ```findFrequentSequentialPatterns``` instead of
```spark.findFrequentSequentialPatterns```? I have a question about when we
need to add ```spark``` in front of the method name. In FPGrowth, some methods
have ```spark.```, e.g. ```spark.freqItemsets```,
```spark.associationRules```. Some methods don't have ```spark.```, e.g.
```predict``` and ```write.ml``` .
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