DataFrame.mean includes datetime64[ns] dtypes in 0.24.0rc1 · Issue #24752 · pandas-dev/pandas (original) (raw)

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@TomAugspurger

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@TomAugspurger

I think this isn't deliberate.

0.23.4

In [1]: import pandas as pd

In [2]: pd.DataFrame({"A": pd.date_range('2000', periods=12)}).mean() Out[2]: Series([], dtype: float64)

0.24.0rc1

In [2]: pd.DataFrame({"A": pd.date_range('2000', periods=12)}).mean() Out[2]: A 2124-07-04 18:21:24.687506176 dtype: datetime64[ns]

We continue to raise on Series[datetime64[ns]].mean()