Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/21250#discussion_r186347093
--- Diff: docs/sparkr.md ---
@@ -663,3 +663,7 @@ You can inspect the search path in R with
[`search()`](https://stat.ethz.ch/R-ma
- The `stringsAsFactors` parameter was previously ignored with `collect`,
for example, in `collect(createDataFrame(iris), stringsAsFactors = TRUE))`. It
has been corrected.
- For `summary`, option for statistics to compute has been added. Its
output is changed from that from `describe`.
- A warning can be raised if versions of SparkR package and the Spark JVM
do not match.
+
+## Upgrading to Spark 2.3.1 and above
--- End diff --
`Spark` -> `SparkR`
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