huaxingao 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_r360688350
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File path:
mllib/src/main/scala/org/apache/spark/ml/classification/DecisionTreeClassifier.scala
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@@ -126,6 +126,8 @@ class DecisionTreeClassifier @Since("1.4.0") (
}
validateNumClasses(numClasses)
val instances = extractInstances(dataset, numClasses)
+ val weightSum = instances.map(_.weight).reduce(_ + _)
Review comment:
I will take a look to find out if ```weightSum``` is already available in
other place.
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