srowen commented on a change in pull request #21632: [SPARK-19591][ML][MLlib]
Add sample weights to decision trees
URL: https://github.com/apache/spark/pull/21632#discussion_r241777281
##########
File path: mllib/src/main/scala/org/apache/spark/ml/feature/LabeledPoint.scala
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@@ -37,4 +37,9 @@ case class LabeledPoint(@Since("2.0.0") label: Double,
@Since("2.0.0") features:
override def toString: String = {
s"($label,$features)"
}
+
+ private[spark] def toInstance(weight: Double): Instance = {
+ Instance(label, weight, features)
Review comment:
I think this belongs in the Instance class, but, don't feel strongly about
it.
It can also specify a default value of 1.0 to avoid writing that in most
calls.
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