[SPARK-35619] Refactor LinearRegression - make huber support virtual centering

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Resolved
• Affects Version/s: 3.2.0
• Fix Version/s: 3.2.0
• Component/s: ML
• Assignee: Ruifeng Zheng
• Reporter: Ruifeng Zheng
• Created: 03/Jun/21 01:49
• Updated: 18/Jun/21 11:31
• Resolved: 07/Jun/21 03:29

Description

1, make huber regression support virtual centering

2, as to {LeastSquares}, it always compute without intercept, and estimate the intercept after optimizing the linear part. So just re-org the LeastSquares part

Issue Links

• links to: [Github] Pull Request #32759 (zhengruifeng)