Github user jkbradley commented on a diff in the pull request: https://github.com/apache/spark/pull/21129#discussion_r186572477 --- Diff: mllib/src/main/scala/org/apache/spark/ml/tree/treeParams.scala --- @@ -497,6 +498,9 @@ private[ml] trait GBTParams extends TreeEnsembleParams with HasMaxIter with HasS @deprecated("This method is deprecated and will be removed in 3.0.0.", "2.1.0") def setStepSize(value: Double): this.type = set(stepSize, value) + /** @group setParam */ + def setValidationIndicatorCol(value: String): this.type = set(validationIndicatorCol, value) --- End diff -- Since we need this setter to be in the concrete classes for Java compatibility, don't bother putting it here.
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