[GitHub] spark pull request: [SPARK-5253] [ML] LinearRegression with L1/L2 ...

[mengxr <gi...@git.apache.org>]

Github user mengxr commented on a diff in the pull request:

    https://github.com/apache/spark/pull/4259#discussion_r24056248
  
    --- Diff: mllib/src/main/scala/org/apache/spark/ml/param/sharedParams.scala ---
    @@ -23,6 +23,27 @@ private[ml] trait HasRegParam extends Params {
       def getRegParam: Double = get(regParam)
     }
     
    +private[ml] trait HasElasticNetParam extends HasRegParam {
    +  /** param for elastic net regularization parameter */
    +  val alphaParam: DoubleParam = new DoubleParam(
    --- End diff --
    
    I would move it to `LinearRegression` and rename it to `alpha`. This is not a shared param.


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