Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/16883#discussion_r104489244
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/feature/StringIndexer.scala ---
@@ -34,8 +36,27 @@ import org.apache.spark.util.collection.OpenHashMap
/**
* Base trait for [[StringIndexer]] and [[StringIndexerModel]].
*/
-private[feature] trait StringIndexerBase extends Params with HasInputCol
with HasOutputCol
- with HasHandleInvalid {
+private[feature] trait StringIndexerBase extends Params with HasInputCol
with HasOutputCol {
+
+ /**
+ * Param for how to handle unseen labels. Options are 'skip' (filter out
rows with
+ * unseen labels), 'error' (throw an error), or 'keep' (put unseen
labels in a special additional
+ * bucket, at index numLabels.
+ * Default: "error"
+ * @group param
+ */
+ @Since("2.1.0")
--- End diff --
I missed this before, but these Since annotations should stay set to 1.6.0
since handleInvalid and the get/set methods were added in 1.6.0
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