Github user yinxusen commented on a diff in the pull request: https://github.com/apache/spark/pull/11486#discussion_r56447514 --- Diff: mllib/src/main/scala/org/apache/spark/ml/classification/NaiveBayes.scala --- @@ -227,6 +233,35 @@ class NaiveBayesModel private[ml] ( @Since("1.6.0") override def write: MLWriter = new NaiveBayesModel.NaiveBayesModelWriter(this) + + private var featureNames: Option[Array[String]] = None --- End diff -- @mengxr I remove the previous `NaiveBayesSummary` and add these two `featureNames` and `labelNames` because we need these two variables to be accessed from `NaiveBayesModel`.
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