Github user zhengruifeng commented on a diff in the pull request: https://github.com/apache/spark/pull/15881#discussion_r87939306 --- Diff: mllib/src/main/scala/org/apache/spark/ml/tree/treeParams.scala --- @@ -73,11 +73,13 @@ private[ml] trait DecisionTreeParams extends PredictorParams /** * Minimum information gain for a split to be considered at a tree node. + * Should be >= 0.0. * (default = 0.0) * @group param */ final val minInfoGain: DoubleParam = new DoubleParam(this, "minInfoGain", - "Minimum information gain for a split to be considered at a tree node.") + "Minimum information gain for a split to be considered at a tree node.", --- End diff -- ðï¼ I will add it
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