Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/8552#discussion_r38448241
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/param/shared/sharedParams.scala ---
@@ -337,7 +337,7 @@ private[ml] trait HasStepSize extends Params {
* Param for Step size to be used for each iteration of optimization..
* @group param
*/
- final val stepSize: DoubleParam = new DoubleParam(this, "stepSize",
"Step size to be used for each iteration of optimization.")
+ final val stepSize: DoubleParam = new DoubleParam(this, "stepSize",
"Step size to be used for each iteration of optimization.",
ParamValidators.inRange(0, 1, lowerInclusive = false, upperInclusive = true))
--- End diff --
This is not necessary for convergence.
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