viirya commented on a change in pull request #20146: [SPARK-11215][ML] Add
multiple columns support to StringIndexer
URL: https://github.com/apache/spark/pull/20146#discussion_r243511497
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File path: mllib/src/main/scala/org/apache/spark/ml/feature/StringIndexer.scala
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@@ -66,6 +68,9 @@ private[feature] trait StringIndexerBase extends Params with
HasHandleInvalid wi
* - 'alphabetAsc': ascending alphabetical order
* Default is 'frequencyDesc'.
*
+ * Note: In case of equal frequency when under frequencyDesc/Asc, the
strings are further sorted
Review comment:
Good for me.
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