[R-pkg-devel] tibbles are not data frames

[Hadley Wickham]

On Tue, Sep 26, 2017 at 8:35 AM, Joris Meys <Joris.Meys at ugent.be> wrote:
> Where its parent class _sometimes_ returns an atomic vector and
>>
>> _sometimes_ returns a data frame.
>
> Indeed. And a tibble doesn't, so there's a conflict. Nobody said data.frame
> works better than tibble. Actually, we all agree that the legacy behaviour
> sucks. But it exists, and causes conflicts when users expect a tibble to
> behave the same as a data.frame.
>
> It does not.

So we should never try and improve upon legacy behaviour? I don't
understand what you're arguing for here. If a tibble didn't inherit
from a data frame, it would be useless.

Hadley

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