Github user dbtsai commented on a diff in the pull request: https://github.com/apache/spark/pull/8884#discussion_r40518881 --- Diff: mllib/src/main/scala/org/apache/spark/ml/regression/LinearRegression.scala --- @@ -140,6 +141,17 @@ class LinearRegression(override val uid: String) def setWeightCol(value: String): this.type = set(weightCol, value) setDefault(weightCol -> "") + /** + * Set the solver algorithm for optimization. + * In case of linear regression, this can be "l-bfgs", "normal" and "auto". + * The default value is "auto" which means that the solver algorithm is + * selected automatically. + * @param value + * @return --- End diff -- remove `@return`
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