Hey guys,
Thanks for all the suggestions. They seem already relatively involved, but I'll
have a look at the table implementation. That seems to be the easiest of them
all.
Cheers
Wolfgang
On 2012-05-03, at 9:39 AM, Charles R Harris wrote:
>
>
> On Thu, May 3, 2012 at 3:41 AM, Nathanie
On Thu, May 3, 2012 at 3:41 AM, Nathaniel Smith wrote:
> On Thu, May 3, 2012 at 4:44 AM, Charles R Harris
> wrote:
> >
> >
> > On Wed, May 2, 2012 at 3:20 PM, Nathaniel Smith wrote:
> >> This coordinate format is also what's used by the MATLAB Tensor
> >> Toolbox. They have a paper justifying t
On Thu, May 3, 2012 at 4:44 AM, Charles R Harris
wrote:
>
>
> On Wed, May 2, 2012 at 3:20 PM, Nathaniel Smith wrote:
>> This coordinate format is also what's used by the MATLAB Tensor
>> Toolbox. They have a paper justifying this choice and describing some
>> tricks for how to work with them:
>>
On 05/03/2012 03:25 AM, Travis Oliphant wrote:
>
> On May 2, 2012, at 5:28 PM, Stéfan van der Walt wrote:
>
>> On Wed, May 2, 2012 at 3:20 PM, Francesc Alted wrote:
>>> On 5/2/12 4:07 PM, Stéfan van der Walt wrote:
>>> Well, as the OP said, coo_matrix does not support dimensions larger than
>>> 2,
On 05/03/2012 06:27 AM, Travis Oliphant wrote:
>
> On May 2, 2012, at 10:03 PM, Stéfan van der Walt wrote:
>
>> On Wed, May 2, 2012 at 6:25 PM, Travis Oliphant wrote:
>>> The only new principle (which is not strictly new --- but new to NumPy's
>>> world-view) is using one (or more) fields of a st
On May 2, 2012, at 10:03 PM, Stéfan van der Walt wrote:
> On Wed, May 2, 2012 at 6:25 PM, Travis Oliphant wrote:
>> The only new principle (which is not strictly new --- but new to NumPy's
>> world-view) is using one (or more) fields of a structured array as
>> "synthetic dimensions" which rep
On Wed, May 2, 2012 at 3:20 PM, Nathaniel Smith wrote:
> On Wed, May 2, 2012 at 9:53 PM, Francesc Alted
> wrote:
> > On 5/2/12 11:16 AM, Wolfgang Kerzendorf wrote:
> >> Hi all,
> >>
> >> I'm currently writing a code that needs three dimensional data (for the
> physicists it's dimensions are atom
On Wed, May 2, 2012 at 6:25 PM, Travis Oliphant wrote:
> The only new principle (which is not strictly new --- but new to NumPy's
> world-view) is using one (or more) fields of a structured array as "synthetic
> dimensions" which replace 1 or more of the raw table dimensions.
Ah, thanks--that's
On May 2, 2012, at 5:28 PM, Stéfan van der Walt wrote:
> On Wed, May 2, 2012 at 3:20 PM, Francesc Alted wrote:
>> On 5/2/12 4:07 PM, Stéfan van der Walt wrote:
>> Well, as the OP said, coo_matrix does not support dimensions larger than
>> 2, right?
>
> That's just an implementation detail, I wo
On Wed, May 2, 2012 at 11:26 PM, Francesc Alted wrote:
> On 5/2/12 4:20 PM, Nathaniel Smith wrote:
>> On Wed, May 2, 2012 at 9:53 PM, Francesc Alted wrote:
>>> On 5/2/12 11:16 AM, Wolfgang Kerzendorf wrote:
Hi all,
I'm currently writing a code that needs three dimensional data (for
On 5/2/12 5:28 PM, Stéfan van der Walt wrote:
> On Wed, May 2, 2012 at 3:20 PM, Francesc Alted wrote:
>> On 5/2/12 4:07 PM, Stéfan van der Walt wrote:
>> Well, as the OP said, coo_matrix does not support dimensions larger than
>> 2, right?
> That's just an implementation detail, I would imagine--I
On Wed, May 2, 2012 at 3:20 PM, Francesc Alted wrote:
> On 5/2/12 4:07 PM, Stéfan van der Walt wrote:
> Well, as the OP said, coo_matrix does not support dimensions larger than
> 2, right?
That's just an implementation detail, I would imagine--I'm trying to
figure out if there is a new principle
On 5/2/12 4:20 PM, Nathaniel Smith wrote:
> On Wed, May 2, 2012 at 9:53 PM, Francesc Alted wrote:
>> On 5/2/12 11:16 AM, Wolfgang Kerzendorf wrote:
>>> Hi all,
>>>
>>> I'm currently writing a code that needs three dimensional data (for the
>>> physicists it's dimensions are atom, ion, level). The
On 5/2/12 4:07 PM, Stéfan van der Walt wrote:
> Hi Francesc
>
> On Wed, May 2, 2012 at 1:53 PM, Francesc Alted wrote:
>> and add another one for the actual values of the array. For a 3-D
>> sparse array, this looks like:
>>
>> dim0 | dim1 | dim2 | value
>> ==
>> 0 |
On Wed, May 2, 2012 at 9:53 PM, Francesc Alted wrote:
> On 5/2/12 11:16 AM, Wolfgang Kerzendorf wrote:
>> Hi all,
>>
>> I'm currently writing a code that needs three dimensional data (for the
>> physicists it's dimensions are atom, ion, level). The problem is that not
>> all combinations do exis
Hi Francesc
On Wed, May 2, 2012 at 1:53 PM, Francesc Alted wrote:
> and add another one for the actual values of the array. For a 3-D
> sparse array, this looks like:
>
> dim0 | dim1 | dim2 | value
> ==
> 0 | 0 | 0 | val0
> 0 | 10 | 100 | val1
> 20 | 5
On 5/2/12 11:16 AM, Wolfgang Kerzendorf wrote:
> Hi all,
>
> I'm currently writing a code that needs three dimensional data (for the
> physicists it's dimensions are atom, ion, level). The problem is that not all
> combinations do exist (a sparse array). Sparse matrices in scipy only deal
> with
what about numpy.ma? Those are marked array. But they won't be the fastest.
Fred
On Wed, May 2, 2012 at 12:16 PM, Wolfgang Kerzendorf
wrote:
> Hi all,
>
> I'm currently writing a code that needs three dimensional data (for the
> physicists it's dimensions are atom, ion, level). The problem is t
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