GitHub user yu-iskw opened a pull request:
https://github.com/apache/spark/pull/8266
[SPARK-10075][SparkR] Add `when` expressino function in SparkR
- Add `when` and `otherwise` as `Column` methods
- Add `When` as an expression function
- Add `%otherwise%` infix as an alias of `otherwise`
Since R doesn't support a feature like method chaining, I think
`otherwise(when(condition, value), value)` style is a little annoying for me.
If `%otherwise%` looks strange for @shivaram, I can remove it. What do you
think?
### JIRA
[[SPARK-10075] Add `when` expressino function in SparkR - ASF
JIRA](https://issues.apache.org/jira/browse/SPARK-10075)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/yu-iskw/spark SPARK-10075
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/8266.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #8266
----
commit f80f7c0ab611896977caa8c4c2b407986b03cb8a
Author: Yu ISHIKAWA <[email protected]>
Date: 2015-08-18T06:43:41Z
[SPARK-10075][SparkR] Add `when` expressino function in SparkR
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