Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/7952#discussion_r36355035
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/regression/IsotonicRegression.scala ---
@@ -17,44 +17,106 @@
package org.apache.spark.ml.regression
+import org.apache.spark.Logging
import org.apache.spark.annotation.Experimental
-import org.apache.spark.ml.PredictorParams
-import org.apache.spark.ml.param.{Param, ParamMap, BooleanParam}
-import org.apache.spark.ml.util.{SchemaUtils, Identifiable}
-import org.apache.spark.mllib.regression.{IsotonicRegression =>
MLlibIsotonicRegression}
-import org.apache.spark.mllib.regression.{IsotonicRegressionModel =>
MLlibIsotonicRegressionModel}
+import org.apache.spark.ml.{Estimator, Model}
+import org.apache.spark.ml.param._
+import org.apache.spark.ml.param.shared.{HasFeaturesCol, HasLabelCol,
HasPredictionCol}
+import org.apache.spark.ml.util.{Identifiable, SchemaUtils}
+import org.apache.spark.mllib.linalg.{Vector, VectorUDT, Vectors}
+import org.apache.spark.mllib.regression.{IsotonicRegression =>
MLlibIsotonicRegression, IsotonicRegressionModel =>
MLlibIsotonicRegressionModel}
import org.apache.spark.rdd.RDD
-import org.apache.spark.sql.types.{DoubleType, DataType}
-import org.apache.spark.sql.{Row, DataFrame}
+import org.apache.spark.sql.{DataFrame, Row}
+import org.apache.spark.sql.functions.{col, lit, udf}
+import org.apache.spark.sql.types.{DoubleType, StructType}
import org.apache.spark.storage.StorageLevel
/**
* Params for isotonic regression.
*/
-private[regression] trait IsotonicRegressionParams extends PredictorParams
{
+private[regression] trait IsotonicRegressionBase extends Params with
HasFeaturesCol
+ with HasLabelCol with HasPredictionCol with Logging {
/**
* Param for weight column name.
--- End diff --
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