BUG/TST: non-numeric EA reductions #59234
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lukemanley
added
Bug
ExtensionArray
mroeschke
reviewed
Jul 12, 2024
pandas/core/arrays/string_.py
Outdated
| @@ -525,7 +525,10 @@ def _reduce( | |||
| self, name: str, *, skipna: bool = True, axis: AxisInt | None = 0, **kwargs | |||
| ): | |||
| if name in ["min", "max"]: | |||
| return getattr(self, name)(skipna=skipna, axis=axis) | |||
| result = getattr(self, name)(skipna=skipna, axis=axis) | |||
| if kwargs.get("keepdims"): | |||
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Could you include keepdims in the _reduce signature instead?
mroeschke
reviewed
Jul 12, 2024
| if name == "std": | ||
| from pandas.core.arrays import TimedeltaArray | ||
|
|
||
| return TimedeltaArray._from_sequence(result) |
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Does this possibly preserve the resolution of the input? e.g std of a ms resolution datetime array should return ms resolution
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yes, the resolution is preserved in nanops.nanstd.
mroeschke
approved these changes
Jul 13, 2024
|
Thanks @lukemanley |
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doc/source/whatsnew/v3.0.0.rstfile if fixing a bug or adding a new feature.Fixes a few bugs related to non-numeric EA reductions and expands testing by un-skipping a number of existing tests.
BUG fix example: