Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/11388#discussion_r54344355
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/evaluation/RegressionEvaluator.scala
---
@@ -85,7 +85,8 @@ final class RegressionEvaluator @Since("1.4.0")
(@Since("1.4.0") override val ui
val predictionAndLabels = dataset
.select(col($(predictionCol)).cast(DoubleType),
col($(labelCol)).cast(DoubleType))
- .map { case Row(prediction: Double, label: Double) =>
+ .rdd.
--- End diff --
the code style is weird here...
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