Github user dbtsai commented on the pull request:
https://github.com/apache/spark/pull/8884#issuecomment-148769776
@Lewuathe
They should be the same, but there is no test proving it.
Since in
```scala
test("linear regression with weighted samples"){
```
the normal one is excluded due to the L1 issue, can you add another test
without L1 to prove that `normal` and `l-bfgs` obtain the same solution? Thanks.
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