zhengruifeng created SPARK-35619:
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Summary: Refactor LinearRegression - make huber support virtual
centering
Key: SPARK-35619
URL: https://issues.apache.org/jira/browse/SPARK-35619
Project: Spark
Issue Type: Sub-task
Components: ML
Affects Versions: 3.2.0
Reporter: zhengruifeng
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
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