Github user zero323 commented on a diff in the pull request:
https://github.com/apache/spark/pull/17557#discussion_r110513444
--- Diff: R/pkg/vignettes/sparkr-vignettes.Rmd ---
@@ -906,6 +910,24 @@ predicted <- predict(model, df)
head(predicted)
```
+#### FP-growth
+
+`spark.fpGrowth` executes FP-growth algorithm to mine frequent itemsets on
a `SparkDataFrame`.
+
+* `spark.freqItemsets` method can be used to retrieve a `SparkDataFrame`
with the frequent itemsets.
+* `spark.associationRules` returns a `SparkDataFrame` with the association
rules.
+
+
+```{r}
+items <- selectExpr(createDataFrame(data.frame(items = c(
+ "s,t,u",
--- End diff --
> something that is not coded in 3 lines ;)
That's for sure :) For now I am more trying to figure out how to present
this to make it useful. For ML guide we can safely reuse `data/mllib` but I
don't think we can do the same with vignette unless we bring
`sample_fpgrowth.txt` as a package data.
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