[Numpy-discussion] Help using numPy to create a very large multi dimensional array
Vincent Nijs
v-nijs at kellogg.northwestern.edu
Sun Apr 22 11:43:04 EDT 2007
It seems to be a lot slower than pylab.load for large arrays. Also, it
doesn't handle dates.
Vincent
On 4/22/07 10:33 AM, "Markus Rosenstihl"
<markusro at element.fkp.physik.tu-darmstadt.de> wrote:
> Whats wrong with scipy.io.read_array?
>
> Am 19.04.2007 um 15:50 schrieb Lisandro Dalcin:
>
>> On 4/19/07, Travis Oliphant <oliphant.travis at ieee.org> wrote:
>>> Nick Fotopoulos wrote:
>>>> Devs, is there any possibility of moving/copying pylab.load to numpy?
>>>> I don't see anything in the source that requires the rest of
>>>> matplotlib. Among convenience functions, I think that this function
>>>> ranks pretty highly in convenience.
>>>>
>>>
>>> I'm supportive of this. But, it can't be named numpy.load.
>>>
>>
>> I am also +1 on this, but this functionality should be implemented in
>> C, I think. I've just tested numpy.fromfile('name.txt', sep=' ')
>> against pylab.load('name.txt') for a 35MB text file, the number are:
>>
>> numpy.fromfile: 2.66 sec.
>> pylab.load: 16.64 sec.
>>
>>
>> --
>> Lisandro Dalcín
>> ---------------
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Vincent R. Nijs
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