Github user jkbradley commented on a diff in the pull request: https://github.com/apache/spark/pull/16009#discussion_r90088312 --- Diff: mllib/src/main/scala/org/apache/spark/ml/feature/ChiSqSelector.scala --- @@ -49,15 +49,13 @@ private[feature] trait ChiSqSelectorParams extends Params * * @group param */ - @Since("1.6.0") --- End diff -- In this case, I think it's OK to have Since annotations in the trait since it is private and should never be used beyond ChiSqSelector and ChiSqSelectorModel. That seems pretty safe to me.
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