[Numpy-discussion] Deprecating matrices.

[Charles R Harris]

On Sat, Jan 7, 2017 at 4:35 PM, Ralf Gommers <ralf.gommers at gmail.com> wrote:

>
>
> On Sun, Jan 8, 2017 at 12:26 PM, Charles R Harris <
> charlesr.harris at gmail.com> wrote:
>
>>
>>
>> On Sat, Jan 7, 2017 at 2:29 PM, Ralf Gommers <ralf.gommers at gmail.com>
>> wrote:
>>
>>>
>>> It looks to me like we're getting a bit off track here. The sparse
>>> matrices in scipy are heavily used, and despite rough edges pretty good at
>>> what they do. Deprecating them is not a goal.
>>>
>>> The actual goal for the exercise that started this thread (at least as I
>>> see it) is to remove np.matrix from numpy itself so users (that don't know
>>> the difference) will only use ndarrays. And the few users that prefer
>>> np.matrix for teaching can now switch because of @, so their preference
>>> should have disappeared.
>>>
>>> To reach that goal, no deprecation or backwards incompatible changes to
>>> scipy.sparse are needed.
>>>
>>
>> What is the way forward with sparse? That looks like the biggest blocker
>> on the road to a matrix free NumPy. I don't see moving the matrix package
>> elsewhere as a solution for that.
>>
>
> Why not?
>
>
Because it doesn't get rid of matrices in SciPy, not does one gain a scalar
multiplication operator for sparse.

Chuck
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/numpy-discussion/attachments/20170107/cea92560/attachment.html>