Github user MLnick commented on a diff in the pull request:
https://github.com/apache/spark/pull/13481#discussion_r65643698
--- Diff: python/pyspark/ml/feature.py ---
@@ -2557,6 +2557,10 @@ def getFormula(self):
def _create_model(self, java_model):
return RFormulaModel(java_model)
+ def __str__(self):
+ formulaStr = self.getFormula() if self.isDefined(self.formula)
else ""
--- End diff --
Technically the Scala side is `Option[String]` so prints `RFormula(None)
...` when the param is not set. Not a big deal, but `... else None` here would
sync it up exactly.
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