BUG: resample with asfreq ignores origin if the dataframe has a fixed frequency #62725 #62763
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floura-angel changed the title 
mroeschke requested changes Oct 20, 2025
Comment on lines +1004 to +1010
| exp_idx = pd.to_datetime( | ||
| [ | ||
| "2025-10-17 17:15:00", | ||
| "2025-10-17 17:16:00", | ||
| "2025-10-17 17:17:00", | ||
| ] | ||
| ).astype(result.index.dtype) # match time unit (s/us/ns) |
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Can you construct a DatetimeIndex with freq= so we don't need to use check_freq=False?
natmokval reviewed Oct 20, 2025
| tm.assert_frame_equal(result, expected) | ||
| | ||
| | ||
| def test_asfreq_respects_origin_with_fixed_freq_all_seconds_equal(): |
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Can you please add a comment to the test and refer to the issue related to it, something like # GH#62725 ?
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resamplewithasfreqignoresoriginif the dataframe has a fixed frequency #62725doc/source/whatsnew/vX.X.X.rstfile if fixing a bug or adding a new feature.PR Summary
Bug in :meth:
DataFrame.resample.asfreqwhere fixed-frequency indexes withoriginignored alignmentand returned incorrect values. Now
originandoffsetare respected. (:issue:62725)