Github user dbtsai commented on a diff in the pull request:
https://github.com/apache/spark/pull/9037#discussion_r47317124
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala
---
@@ -434,6 +435,22 @@ class LogisticRegressionModel private[ml] (
new NullPointerException())
}
+ /**
+ * If the probability column is set returns the current model and
probability column,
+ * otherwise generates a new column and sets it as the probability
column on a new copy
+ * of the current model.
+ */
+ private[classification] def findSummaryModelAndProbabilityCol():
+ (LogisticRegressionModel, String) = {
+ $(probabilityCol) match {
+ case "" =>
+ val probabilityColName = "probability_" +
java.util.UUID.randomUUID.toString()
+ (copy(ParamMap.empty).setProbabilityCol(probabilityColName),
probabilityColName)
+ case p => (this, p)
+ }
+ }
+
--- End diff --
extra line
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