Github user etrain commented on a diff in the pull request:
https://github.com/apache/spark/pull/886#discussion_r13926606
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/tree/DecisionTree.scala ---
@@ -233,13 +234,73 @@ object DecisionTree extends Serializable with Logging
{
algo: Algo,
impurity: Impurity,
maxDepth: Int): DecisionTreeModel = {
- val strategy = new Strategy(algo,impurity,maxDepth)
- new DecisionTree(strategy).train(input: RDD[LabeledPoint])
+ val strategy = new Strategy(algo, impurity, maxDepth)
+ // Converting from standard instance format to weighted input format
for tree training
+ val weightedInput = input.map(x => WeightedLabeledPoint(x.label,
x.features))
+ new DecisionTree(strategy).train(weightedInput:
RDD[WeightedLabeledPoint])
--- End diff --
Not sure why you need to be explicit about the types here?
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