Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/20058#discussion_r159021231
--- Diff: python/pyspark/ml/base.py ---
@@ -47,6 +74,24 @@ def _fit(self, dataset):
"""
raise NotImplementedError()
+ @since("2.3.0")
+ def fitMultiple(self, dataset, params):
+ """
+ Fits a model to the input dataset for each param map in params.
+
+ :param dataset: input dataset, which is an instance of
:py:class:`pyspark.sql.DataFrame`.
+ :param params: A list/tuple of param maps.
--- End diff --
Is there another Sequence type this could be other than list or tuple?
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