zhengruifeng 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_r321156681
##########
File path: mllib/src/main/scala/org/apache/spark/ml/tree/treeParams.scala
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@@ -37,7 +37,7 @@ import org.apache.spark.sql.types.{DataType, DoubleType,
StructType}
* Note: Marked as private and DeveloperApi since this may be made public in
the future.
*/
private[ml] trait DecisionTreeParams extends PredictorParams
- with HasCheckpointInterval with HasSeed {
+ with HasCheckpointInterval with HasSeed with HasWeightCol {
Review comment:
Thanks @imatiach-msft ! I just read corresponding tickets.
My concern is that we need to support weighting in RF & GBT in 3.0.0,
otherwise two unused params will be added.
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