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(Series|DataFrame) datetimelike ops #18270

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jbrockmendel opened this issue Nov 13, 2017 · 1 comment
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(Series|DataFrame) datetimelike ops #18270

jbrockmendel opened this issue Nov 13, 2017 · 1 comment
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API Design Datetime Datetime data dtype

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@jbrockmendel
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There are a bunch of GH issues relating to arithmetic ops with datetimelike objects behaving unexpectedly when boxed in a (Series|DataFrame). For the issues I have in mind (I'll collect a list later), the operation works as expected when done on a (DatetimeIndex|TimedeltaIndex|PeriodIndex).

The relevant (Series|DataFrame) operations are defined in core.ops. The DatetimeIndex (et al) ops are defined in core.indexes.datetimelike.DatetimeIndexOpsMixin. With a little gumption the relevant ops can be taken out of DatetimeIndexOpsMixin and made into (Index|Series|DataFrame)-agnostic classes TimestampVector, TimedeltaVector, PeriodVector.

Would it be feasible/desirable to have appropriately-dtyped (Series|DataFrame) methods dispatch to these implementations?
@gfyoung gfyoung added Datetime Datetime data dtype API Design labels Nov 16, 2017
@jbrockmendel
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Related #9859

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