Github user kevinyu98 commented on a diff in the pull request:
https://github.com/apache/spark/pull/20842#discussion_r176899545
--- Diff: python/pyspark/ml/regression.py ---
@@ -347,6 +347,20 @@ def r2(self):
"""
return self._call_java("r2")
+ @property
+ @since("2.4.0")
+ def r2adj(self):
+ """
+ Returns Adjusted R^2^, the adjusted coefficient of determination.
+
+ .. seealso:: `Wikipedia coefficient of determination \
+ <https://en.wikipedia.org/wiki/Coefficient_of_determination>`
--- End diff --
ok, done.
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