Github user sethah commented on a diff in the pull request:
https://github.com/apache/spark/pull/15913#discussion_r89360295
--- Diff: mllib/src/main/scala/org/apache/spark/ml/tree/treeParams.scala ---
@@ -443,12 +425,11 @@ private[ml] trait GBTParams extends
TreeEnsembleParams with HasMaxIter with HasS
* (default = 0.1)
* @group setParam
*/
- def setStepSize(value: Double): this.type = set(stepSize, value)
-
- override def validateParams(): Unit = {
+ def setStepSize(value: Double): this.type = {
require(ParamValidators.inRange(0, 1, lowerInclusive = false,
upperInclusive = true)(
--- End diff --
I think it's better to fail at set time rather than when `fit` is called.
This was _also_ not used before, seems we missed it when we deprecated
`validateParams()` ?
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