Github user imatiach-msft commented on the issue:
https://github.com/apache/spark/pull/16516
Maybe a more generic fix would be to fix the method ParamValidators.inArray
to be case insensitive. I see this method used in a lot of places. Doing a
simple search brings up not just LogisticRegression.scala but also:
/mllib/src/main/scala/org/apache/spark/ml/evaluation/BinaryClassificationEvaluator.scala
/mllib/src/main/scala/org/apache/spark/ml/evaluation/MulticlassClassificationEvaluator.scala
/mllib/src/main/scala/org/apache/spark/ml/evaluation/RegressionEvaluator.scala
/mllib/src/main/scala/org/apache/spark/ml/feature/Bucketizer.scala
/mllib/src/main/scala/org/apache/spark/ml/feature/ChiSqSelector.scala
and many others as well, and it looks like they all suffer from the same
bug. A more general fix would be preferred I think, especially to make all
code consistent and use the same method, no? It doesn't seem like any
parameter should be case-sensitive.
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