Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/17884#discussion_r115157452
--- Diff: R/pkg/vignettes/sparkr-vignettes.Rmd ---
@@ -1079,19 +1079,19 @@ There are three main object classes in SparkR you
may be working with.
+ `sdf` stores a reference to the corresponding Spark Dataset in the
Spark JVM backend.
+ `env` saves the meta-information of the object such as `isCached`.
-It can be created by data import methods or by transforming an existing
`SparkDataFrame`. We can manipulate `SparkDataFrame` by numerous data
processing functions and feed that into machine learning algorithms.
+ It can be created by data import methods or by transforming an
existing `SparkDataFrame`. We can manipulate `SparkDataFrame` by numerous data
processing functions and feed that into machine learning algorithms.
--- End diff --
cool! thanks
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