Github user mengxr commented on a diff in the pull request: https://github.com/apache/spark/pull/1673#discussion_r15631754 --- Diff: mllib/src/main/scala/org/apache/spark/mllib/tree/DecisionTree.scala --- @@ -598,9 +598,12 @@ object DecisionTree extends Serializable with Logging { // Find feature bins for all nodes at a level. val binMappedRDD = input.map(x => findBinsForLevel(x)) - def updateBinForOrderedFeature(arr: Array[Double], agg: Array[Double], nodeIndex: Int, - label: Double, featureIndex: Int) = { - + def updateBinForOrderedFeature( + arr: Array[Double], + agg: Array[Double], + nodeIndex: Int, + label: Double, + featureIndex: Int) = { --- End diff -- @srowen Thanks for providing the reference! I'm okay with either `) {` or `): Unit = {`. But I'm always thinking about the return type if I see `) = {`.
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