Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/14858#discussion_r79282998
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/feature/QuantileDiscretizer.scala ---
@@ -109,7 +114,7 @@ final class QuantileDiscretizer @Since("1.6.0")
(@Since("1.6.0") override val ui
@Since("2.0.0")
override def fit(dataset: Dataset[_]): Bucketizer = {
transformSchema(dataset.schema, logging = true)
- val splits = dataset.stat.approxQuantile($(inputCol),
+ val splits =
dataset.select($(inputCol)).na.drop().stat.approxQuantile($(inputCol),
--- End diff --
@VinceShieh if you're interested in proceeding with the change you
describe, go ahead. The new behavior should be documented explicitly, because I
think it's the behavior one would already expect.
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