Github user yinxusen commented on the pull request:
https://github.com/apache/spark/pull/11053#issuecomment-185939733
@devaraj-kavali All look good to me except those minors I pointed out above.
@mengxr The `ModelSelectionViaTrainValidationSplitExample` and
`JavaModelSelectionViaTrainValidationSplitExample`, which call
`LinearRegression` then `CholeskyDecomposition.solve()`, fail with return value
1. I am not sure why those errors occur, can you help checking it? I can run
`WeightedLeastSquareSuite` successfully.
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