Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/7294#discussion_r34624184
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/classification/RandomForestClassifier.scala
---
@@ -93,9 +93,12 @@ final class RandomForestClassifier(override val uid:
String)
val oldDataset: RDD[LabeledPoint] = extractLabeledPoints(dataset)
val strategy =
super.getOldStrategy(categoricalFeatures, numClasses,
OldAlgo.Classification, getOldImpurity)
- val oldModel = OldRandomForest.trainClassifier(
- oldDataset, strategy, getNumTrees, getFeatureSubsetStrategy,
getSeed.toInt)
- RandomForestClassificationModel.fromOld(oldModel, this,
categoricalFeatures)
+ // val oldModel = OldRandomForest.trainClassifier(
+ // oldDataset, strategy, getNumTrees, getFeatureSubsetStrategy,
getSeed.toInt)
+ // RandomForestClassificationModel.fromOld(oldModel, this,
categoricalFeatures)
+ val trees = RandomForest.run(oldDataset, strategy, getNumTrees,
getFeatureSubsetStrategy,
+ getSeed).map(_.asInstanceOf[DecisionTreeClassificationModel])
--- End diff --
move `.map` to a new line, e.g.:
~~~scala
val trees = RandomForest.run(
oldDataset, strategy, getNumTrees, getFeatureSubsetStrategy, getSeed)
.map(_.asInstanceOf[DecisionTreeClassificationModel])
~~~
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