[Numpy-discussion] [ANN] Introductory Pytroll Workshop, Nov. 25-26 2013, at SMHI, Sweden

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 [sorry for crossposting] Hi all, After the success of last years workshop, we decided to hold the Pytroll workshop this year again at SMHI. Pytroll is a collection of free and open source python modules for the reading, interpretation, and writing

[Numpy-discussion] [ANN] Introductory Pytroll Workshop, Nov. 25-26 2013, at SMHI, Sweden

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 [sorry for crossposting] Hi all, After the success of last years workshop, we decided to hold the Pytroll workshop this year again at SMHI. Pytroll is a collection of free and open source python modules for the reading, interpretation, and writing

[Numpy-discussion] Strange memory consumption in numpy?

Raspaud # Author(s): # Martin Raspaud martin.rasp...@smhi.se # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any

Re: [Numpy-discussion] Strange memory consumption in numpy?

On 16/05/13 10:26, Robert Kern wrote: Can anyone give a reasonable explanation ? memory_profiler only looks at the amount of memory that the OS has allocated to the Python process. It cannot measure the amount of memory actually given to living objects. Python does not always return memory

[Numpy-discussion] allclose changed behaviour in 1.6.2 ?

Hi, We noticed that comparing arrays of different shapes with allclose doesn't work anymore in numpy 1.6.2. Is this a feature or a bug ? :) See the output in both 1.6.1 and 1.6.2 at the end of this mail. Best regards, Martin 1.6.1:: In [1]: import numpy as np In [2]: np.__version__

Re: [Numpy-discussion] Numpy 1.6.1 installation problem

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 14/02/12 16:48, Bruce Southey wrote: On 02/14/2012 09:40 AM, Olivier Delalleau wrote: Really not an expert here, but it looks like it's trying various compilation options, some work and some don't, and for some reason it's really unhappy about

[Numpy-discussion] Numpy 1.6.1 installation problem

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi all, I am trying to compile numpy 1.6.1 from source on a Redhat Linux enterprise 6 machine, and I get a problem with Python.h : somehow it can't be located by numpy's install script: SystemError: Cannot compile 'Python.h'. Perhaps you need to

Re: [Numpy-discussion] kind of a matrix multiplication

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 11/10/11 07:49, Martin Raspaud wrote: Hi all, [...] I'm looking for the operation needed to get the two (stacked) vectors array([[0, 1, 2], [6, 8, 10]])) or its transpose. Hi again, Here is a solution I just found: np.einsum(ik, jki

Re: [Numpy-discussion] [SciPy-Dev] Good-bye, sort of (John Hunter)

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 David Goldsmith skrev: Ahh, cell arrays, they bring back memories. Makes you pine for a dictionary, no? JDH Not to mention writeline, readline, string concatenation using +, English wording of loops, list comprehension,

Re: [Numpy-discussion] numpy.fft, yet again

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 David Goldsmith skrev: Interesting comment: it made me run down the fftpack tutorial http://docs.scipy.org/scipy/docs/scipy-docs/tutorial/fftpack.rst/ josef has alluded to in the past to see if the suggested pointer could point

[Numpy-discussion] Reading 12bits numbers ?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi, Is it possible to read an array of 12bit encoded numbers from file (or string) using numpy ? Thanks, Martin -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/

Re: [Numpy-discussion] Reading 12bits numbers ?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Nadav Horesh skrev: You can. If each number occupies 2 bytes (16 bits) it is straight forward. If it is a continues 12 bits stream you have to unpack by your self: data = np.fromstring(str12bits, dtype=np.uint8) data1 = data.astype(no.uint16)

Re: [Numpy-discussion] Decision tree-like algorithm on numpy arrays

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Francesc Alted skrev: Hi Martin, [...] and the output for my machine: result_array1: [4 2 4 ..., 1 3 4] 1.819 result_array2: [4 2 4 ..., 1 3 4] 0.308 which is a 6x speed-up. I suppose this should be pretty close of what you can get

[Numpy-discussion] Int bitsize in python and c

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hello, I work on a 64bit machine with 64bits enable fedora on it. I just discovered that numpy.int on the python part are 64bits ints, while npy_int in the C api are 32bits ints. I can live with it, but it seems to be different on 32bit machines,

Re: [Numpy-discussion] Int bitsize in python and c

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dag Sverre Seljebotn skrev: Martin Raspaud wrote: Hello, I work on a 64bit machine with 64bits enable fedora on it. I just discovered that numpy.int on the python part are 64bits ints, while npy_int in the C api are 32bits ints

Re: [Numpy-discussion] C-api and masked arrays

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Pierre GM skrev: On Mar 1, 2010, at 10:04 AM, Martin Raspaud wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi all, We are using at the moment a c extension which should manipulate masked arrays. What we do is to fill the masked array