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API: EA.ffill/bfill? #53621

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jbrockmendel opened this issue Jun 12, 2023 · 0 comments · Fixed by #54001
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API: EA.ffill/bfill? #53621

jbrockmendel opened this issue Jun 12, 2023 · 0 comments · Fixed by #54001
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API Design ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate

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jbrockmendel commented Jun 12, 2023 •
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ATM EA.fillna handles both a) fillna(scalar), b) ffill/bfill, and c) interpolate (which is mostly broken except for ffill/bfill (which I think should not go through interpolate xref #53581) xref #50950)

At the NDFrame level we have four separate methods: ffill, bfill, fillna, interpolate. I think it makes sense to just have the same four methods all the way down the stack (Manager, Block, EA). I'd also be OK with ffill/bfill being combined into e.g. pad_or_backfill for the internal classes.
@jbrockmendel jbrockmendel added Bug Needs Triage Issue that has not been reviewed by a pandas team member labels Jun 12, 2023
@lithomas1 lithomas1 added Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate API Design ExtensionArray Extending pandas with custom dtypes or arrays. and removed Bug Needs Triage Issue that has not been reviewed by a pandas team member labels Jun 12, 2023
@jbrockmendel jbrockmendel mentioned this issue Jun 24, 2023
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@jorisvandenbossche jorisvandenbossche mentioned this issue Aug 28, 2023
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@rhshadrach rhshadrach mentioned this issue Mar 24, 2024
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API Design ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
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REF: implement EA.pad_or_backfill jbrockmendel/pandas
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