Francesc Alted wrote:
> A Wednesday 17 February 2010 08:34:06 Nicola Creati escrigué:
>
>> Any kind of improvement is really appreciated.
>>
>
> Well, if you cannot really transpose your matrix, numexpr can also serve as a
> good accelerator:
>
> In [1]: import numpy as np
>
> In [2]: impo
A Wednesday 17 February 2010 08:34:06 Nicola Creati escrigué:
> Any kind of improvement is really appreciated.
Well, if you cannot really transpose your matrix, numexpr can also serve as a
good accelerator:
In [1]: import numpy as np
In [2]: import numexpr as ne
In [3]: x_min, x_max, y_min, y_
Neil Crighton wrote:
> Francesc Alted pytables.org> writes:
>
>
>> In [10]: array = np.random.random((3, 1000))
>>
>> then the time drops significantly:
>>
>> In [11]: time (array[0]>x_min) & (array[0]y_min) &
>> (array[1]> CPU times: user 0.15 s, sys: 0.01 s, total: 0.16 s
>> Wall time: 0
Francesc Alted pytables.org> writes:
> In [10]: array = np.random.random((3, 1000))
>
> then the time drops significantly:
>
> In [11]: time (array[0]>x_min) & (array[0]y_min) &
> (array[1] CPU times: user 0.15 s, sys: 0.01 s, total: 0.16 s
> Wall time: 0.16 s
> Out[12]: array([False, Fals
A Tuesday 16 February 2010 13:42:37 Nicola Creati escrigué:
> Hello,
> I need to extract a subset from a Nx3 array. Each row has x, y, and z
> coordinates.
> The subset is just a portion of the array in which the following
> condition realizes
>
> x_min < x < x_max and y_min < y < y_max
>
> The p
On Tue, Feb 16, 2010 at 06:42, Nicola Creati wrote:
> Hello,
> I need to extract a subset from a Nx3 array. Each row has x, y, and z
> coordinates.
> The subset is just a portion of the array in which the following
> condition realizes
>
> x_min < x < x_max and y_min < y < y_max
>
> The problem re
Hello,
I need to extract a subset from a Nx3 array. Each row has x, y, and z
coordinates.
The subset is just a portion of the array in which the following
condition realizes
x_min < x < x_max and y_min < y < y_max
The problem reduce to the extraction of points inside a rectangular box
defined
