BACKPORT: groupby.apply incorrectly dropping nan #43236 #43426
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jreback
added
Groupby
Missing-data
jreback
reviewed
Sep 6, 2021
| @@ -17,6 +17,8 @@ Fixed regressions | |||
| - Fixed regression in :class:`DataFrame` constructor failing to broadcast for defined :class:`Index` and len one list of :class:`Timestamp` (:issue:`42810`) | |||
| - Performance regression in :meth:`core.window.ewm.ExponentialMovingWindow.mean` (:issue:`42333`) | |||
| - Fixed regression in :meth:`.GroupBy.agg` incorrectly raising in some cases (:issue:`42390`) | |||
| - Fixed regression in :meth:`.GroupBy.apply` where ``nan`` values were dropped even with ``dropna=False`` (:issue:`43205`) | |||
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umm you added L21 which is not part of this PR
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thanks @debnathshoham |
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xref #43236