[Numpy-discussion] ENH: Add the function 'expand_view'

josef.pktd at gmail.com josef.pktd at gmail.com
Tue Nov 24 21:13:47 EST 2015


On Tue, Nov 24, 2015 at 7:13 PM, Nathaniel Smith <njs at pobox.com> wrote:

> On Nov 24, 2015 11:57 AM, "John Kirkham" <jakirkham at gmail.com> wrote:
> >
> > Takes an array and tacks on arbitrary dimensions on either side, which
> is returned as a view always. Here are the relevant features:
> >
> > * Creates a view of the array that has the dimensions before and after
> tacked on to it.
> > * Takes the before and after arguments independent of each other and the
> current shape.
> > * Allows for read and write access to the underlying array.
>
> Can you expand this with some discussion of why you want this function,
> and why you chose these specific features? (E.g. as mentioned in the PR
> comments already, the reason broadcast_to returns a read-only array is that
> it was decided that this was less confusing for users, not because of any
> technical issue.)
>

Why is this a stride_trick?

I thought this looks similar to expand_dims and could maybe be implemented
with some extra options there.



Josef



> -n
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