[GitHub] [spark] zhengruifeng commented on a change in pull request #27555: [SPARK-30802][ML] Use Summarizer instead of MultivariateOnlineSummarizer in Aggregator test suite

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zhengruifeng commented on a change in pull request #27555: [SPARK-30802][ML] Use Summarizer instead of MultivariateOnlineSummarizer in Aggregator test suite
URL: https://github.com/apache/spark/pull/27555#discussion_r379289047
 
 

 ##########
 File path: mllib/src/main/scala/org/apache/spark/ml/stat/Summarizer.scala
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 @@ -202,6 +204,38 @@ object Summarizer extends Logging {
     val (metrics, computeMetrics) = getRelevantMetrics(requested)
     new SummarizerBuffer(metrics, computeMetrics)
   }
+
+  /** Get regression feature and label summarizers for provided data. */
+  private[spark] def getRegressionSummarizers(
 
 Review comment:
   `private[ml]` ?

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