[SPARK-2082] Stratified sampling implementation in PairRDDFunctions

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.1.0
• Component/s: MLlib
• Target Version/s: 1.1.0
• Assignee: Doris Xin
• Reporter: Doris Xin
• Created: 09/Jun/14 20:14
• Updated: 29/Jul/14 19:50
• Resolved: 29/Jul/14 19:50

Description

Implementation of stratified sampling that guarantees exact sample size = sum(math.ceil(S_i*sampingRate)) where S_i is the size of each stratum.

Issue Links

• is duplicated by: SPARK-2512 Stratified sampling
• links to: [Github] Pull Request #1025 (dorx)

Sub-Tasks

• Python version without support for exact sample size: Resolved