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| author | Yu ISHIKAWA <yuu.ishikawa@gmail.com> | 2015-08-18 20:27:36 -0700 |
|---|---|---|
| committer | Shivaram Venkataraman <shivaram@cs.berkeley.edu> | 2015-08-18 20:27:36 -0700 |
| commit | bf32c1f7f47dd907d787469f979c5859e02ce5e6 (patch) | |
| tree | b6ff3e44b631be5eb60e1f0d1850b019b0c1b2b4 /unsafe/src | |
| parent | a5b5b936596ceb45f5f5b68bf1d6368534fb9470 (diff) | |
| download | spark-bf32c1f7f47dd907d787469f979c5859e02ce5e6.tar.gz spark-bf32c1f7f47dd907d787469f979c5859e02ce5e6.tar.bz2 spark-bf32c1f7f47dd907d787469f979c5859e02ce5e6.zip | |
[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, `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)
Author: Yu ISHIKAWA <yuu.ishikawa@gmail.com>
Closes #8266 from yu-iskw/SPARK-10075.
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