[SPARK-5885] Add VectorAssembler

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.4.0
• Component/s: ML
• Target Version/s: 1.4.0
• Assignee: Xiangrui Meng
• Reporter: Xiangrui Meng
• Created: 18/Feb/15 18:48
• Updated: 28/Dec/15 20:25
• Resolved: 13/Apr/15 05:42

Description

`VectorAssembler` takes a list of columns (of type double/int/vector) and merge them into a single vector column.

val va = new VectorAssembler()
  .setInputCols("userFeatures", "dayOfWeek", "timeOfDay")
  .setOutputCol("features")

In the first version, it should be okay if it doesn't handle ML attributes (SPARK-4588).

Issue Links

• relates to: SPARK-7584 User guide update for VectorAssembler
• links to: [Github] Pull Request #5196 (mengxr)