[SPARK-9090] Fix definition of residual in LinearRegressionSummary

• Type: Bug
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 1.5.0
• Component/s: ML
• Target Version/s: 1.5.0
• Assignee: Feynman Liang
• Reporter: Feynman Liang
• Shepherd: Joseph K. Bradley
• Created: 16/Jul/15 00:56
• Updated: 17/Jul/15 21:01
• Resolved: 17/Jul/15 21:01

Description

Residual is defined as label - prediction (https://en.wikipedia.org/wiki/Least_squares); we need to update LinearRegressionSummary to be consistent.

Issue Links

• links to: [Github] Pull Request #7435 (feynmanliang)