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  1. Apache Arrow
  2. ARROW-2295

[Python] Add Array.to_numpy functions

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    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Duplicate
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Python
    • Labels:
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      Description

      There are `to_pandas()` functions, but no `to_numpy()` functions. I'd like to propose that we include both.

      Also, `pyarrow.lib.Array.to_pandas()` returns a `numpy.ndarray`, which imho is very confusing . I think it would be more intuitive for the `to_pandas()` functions to return `pandas.Series` and `pandas.DataFrame` objects, and the `to_numpy()` functions to return `numpy.ndarray` and either a ordered dict of `numpy.ndarray` or a structured `numpy.ndarray` depending on a flag, for example. The `to_pandas()` function is of course welcome to use the `to_numpy()` func to avoid the additional index and whatnot of the `pandas.Series`.

       

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              • Assignee:
                Unassigned
                Reporter:
                llchan Lawrence Chan
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