[GitHub] [spark] zhengruifeng commented on a change in pull request #26972: [SPARK-30321][Ml] Log weightSum in Algo that has weights support

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zhengruifeng commented on a change in pull request #26972: [SPARK-30321][Ml] Log weightSum in Algo that has weights support
URL: https://github.com/apache/spark/pull/26972#discussion_r361028836
 
 

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 File path: mllib/src/main/scala/org/apache/spark/ml/tree/treeModels.scala
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 @@ -56,6 +56,8 @@ private[spark] trait DecisionTreeModel {
     rootNode.subtreeDepth
   }
 
+  var weightSum: Double
 
 Review comment:
   Where is this and above var `weightSum` computed or setted?

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