Github user sethah commented on a diff in the pull request:
https://github.com/apache/spark/pull/15435#discussion_r94614489
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala
---
@@ -652,18 +652,27 @@ class LogisticRegression @Since("1.2.0") (
val model = copyValues(new LogisticRegressionModel(uid,
coefficientMatrix, interceptVector,
numClasses, isMultinomial))
- // TODO: implement summary model for multinomial case
+
+ val (summaryModel, probabilityColName, predictionColName)
+ = model.findSummaryModelWithProbabilityColAndPredictionCol()
val m = if (!isMultinomial) {
--- End diff --
How about
````scala
val logRegSummary = if (!isMultinomial) { new
BinaryLogisticRegressionTrainingSummary(...) } else { ... }
model.setSummary(logRegSummary)
````
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