Github user iyounus commented on a diff in the pull request:
https://github.com/apache/spark/pull/10702#discussion_r49941742
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/regression/LinearRegression.scala ---
@@ -219,33 +219,41 @@ class LinearRegression @Since("1.3.0")
(@Since("1.3.0") override val uid: String
}
val yMean = ySummarizer.mean(0)
- val yStd = math.sqrt(ySummarizer.variance(0))
+ var yStd = math.sqrt(ySummarizer.variance(0))
--- End diff --
@srowen I agree with these comments. I'm working on `WeightedLeastSquares`
(https://github.com/apache/spark/pull/10274), and there are some commonalities
between these two issues. Once I've completed all tests for
`WeightedLeastSquares`, I'll compete this issue.
Some of the tests for `LinearRegression` use both `normal` and `l-bfgs`
solvers. It would nice if `WeightedLeastSquares` issue is merged so that I can
write tests in similar way.
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