Github user sethah commented on a diff in the pull request:
https://github.com/apache/spark/pull/16441#discussion_r95667604
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/classification/GBTClassifier.scala ---
@@ -159,14 +158,21 @@ class GBTClassifier @Since("1.4.0") (
val numFeatures = oldDataset.first().features.size
val boostingStrategy =
super.getOldBoostingStrategy(categoricalFeatures, OldAlgo.Classification)
- val instr = Instrumentation.create(this, oldDataset)
+ val numClasses: Int = 2
--- End diff --
I don't mind leaving this, but for things that are this obvious and are
private, we usually omit the type declaration since Scala provides type
inference.
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