[SPARK-13436] Add parameter drop to subsetting operator [

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: SparkR
• Assignee: Oscar D. Lara Yejas
• Reporter: Oscar D. Lara Yejas
• Created: 22/Feb/16 19:32
• Updated: 28/Apr/16 16:42
• Resolved: 27/Apr/16 22:48

Description

Parameter drops allows to return a vector/data.frame accordingly if the result of subsetting a data.frame has one single column (see example below). The same behavior is needed on a DataFrame.

> head(iris[, 1, drop=F])
Sepal.Length
1 5.1
2 4.9
3 4.7
4 4.6
5 5.0
6 5.4

> head(iris[, 1, drop=T])
[1] 5.1 4.9 4.7 4.6 5.0 5.4

Issue Links

• is duplicated by: SPARK-10894 Add 'drop' support for DataFrame's subset function
• links to: [Github] Pull Request #11311 (mgummelt)
• links to: [Github] Pull Request #11318 (olarayej)