Is there a function to get the memory address (int) of
(contigious) ndarray data on Python level - like
array.array.buffer_info() ?
I'd need it to pass it to a camera function.
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2009/8/16 Robert kxrobe...@googlemail.com:
Is there a function to get the memory address (int) of
(contigious) ndarray data on Python level - like
array.array.buffer_info() ?
I'd need it to pass it to a camera function.
Have a look at the array interface:
x.__array_interface__['data']
As you stress on repeat the array ... rather than repeat each element,
you may want to consider tile as well:
np.tile(a, [10,1])
array([[0, 1, 2],
[0, 1, 2],
[0, 1, 2],
[0, 1, 2],
[0, 1, 2],
[0, 1, 2],
[0, 1, 2],
[0, 1, 2],
[0, 1, 2],
On Sun, Aug 16, 2009 at 11:50:44PM -0700, Stéfan van der Walt wrote:
2009/8/16 Robert kxrobe...@googlemail.com:
Is there a function to get the memory address (int) of
(contigious) ndarray data on Python level - like
array.array.buffer_info() ?
I'd need it to pass it to a camera function.
There is also numpy.s_:
inds = np.s_[...,2,:]
z[inds]
(Though there are some problems with negative indices: see for example
http://www.mail-archive.com/numpy-discussion@scipy.org/msg18245.html)
On 8 Aug 2009, at 10:02 PM, T J wrote:
On Sat, Aug 8, 2009 at 8:54 PM, Neil
Submitted as ticket 1196
http://projects.scipy.org/numpy/ticket/1196
On 5 Jun 2009, at 4:12 PM, Robert Kern wrote:
On Fri, Jun 5, 2009 at 16:14, Michael McNeil Forbes
mfor...@physics.ubc.ca wrote:
np.array([0,1,2,3])[1:-1]
array([1, 2])
but
np.array([0,1,2,3])[np.s_[1:-1]]
That's exactly it. Thanks!
On Mon, Aug 17, 2009 at 5:24 AM, Citi, Lucalc...@essex.ac.uk wrote:
As you stress on repeat the array ... rather than repeat each element,
you may want to consider tile as well:
np.tile(a, [10,1])
array([[0, 1, 2],
[0, 1, 2],
[0, 1, 2],
[0, 1,
Hi,
I am getting a strange crash in numpy.linalg.lstsq. I have put the code
that causes the crash along with two data files on my website at:
http://www.cs.toronto.edu/~jtaylor/crash/
I would be interested to know if this bug can be duplicated and/or if anyone
has any suggestions as to why:
On Mon, Aug 17, 2009 at 1:42 PM, Jonathan
Taylorjonathan.tay...@utoronto.ca wrote:
Hi,
I am getting a strange crash in numpy.linalg.lstsq. I have put the code
that causes the crash along with two data files on my website at:
http://www.cs.toronto.edu/~jtaylor/crash/
I would be interested
Hi Jonathan,
http://www.cs.toronto.edu/~jtaylor/crash/
I would be interested to know if this bug can be duplicated and/or if anyone
has any suggestions as to why:
import numpy as np
A = np.load('A.npy')
b = np.load('b.npy')
rc = np.linalg.lstsq(A,b)
produces:
*** glibc detected ***
On Mon, Aug 17, 2009 at 11:42 AM, Jonathan Taylor
jonathan.tay...@utoronto.ca wrote:
Hi,
I am getting a strange crash in numpy.linalg.lstsq. I have put the code
that causes the crash along with two data files on my website at:
Hi,
I am using a computer that is administered. It is an intel Ubuntu box
and came with an ATLAS compiled. I thus compiled my own numpy1.3.0
against that ATLAS.
I was thinking about recompiling ATLAS myself. This machine only has
g77 and not gfortran on it. Will that still work?
Thanks,
Hi,
I created a pickled file on my Windows PC, uploaded to a Linux machine
and then received the following error:
Python 2.5.4 (r254:67916, Feb 5 2009, 19:52:35)
[GCC 4.1.2 20071124 (Red Hat 4.1.2-42)] on linux2
Type help, copyright, credits or license for more information.
import cPickle
On Mon, Aug 17, 2009 at 1:43 PM, Jonathan Taylor
jonathan.tay...@utoronto.ca wrote:
Hi,
I am using a computer that is administered. It is an intel Ubuntu box
and came with an ATLAS compiled. I thus compiled my own numpy1.3.0
against that ATLAS.
I was thinking about recompiling ATLAS
I compiled lapack and atlas from scratch using g77 but now
numpy.test() hangs when I try to use any numpy functionality. I think
I saw someone else write about this. Is this a common problem?
Thanks,
Jonathan.
On Mon, Aug 17, 2009 at 4:38 PM, Charles R
Harrischarlesr.har...@gmail.com wrote:
On Mon, Aug 17, 2009 at 1:50 PM, Jonathan
Taylorjonathan.tay...@utoronto.ca wrote:
I compiled lapack and atlas from scratch using g77 but now
numpy.test() hangs when I try to use any numpy functionality. I think
I saw someone else write about this. Is this a common problem?
Yes, it seems
Yes... ATLAS type problems like matrix multiplication.
Is there some alternative to get a working numpy going? How might I
go about compiling numpy without ATLAS? I really got to get at least
something working temporarily.
Thanks,
Jon.
On Mon, Aug 17, 2009 at 5:03 PM, Keith
On Mon, Aug 17, 2009 at 2:13 PM, Jonathan
Taylorjonathan.tay...@utoronto.ca wrote:
Is there some alternative to get a working numpy going? How might I
go about compiling numpy without ATLAS? I really got to get at least
something working temporarily.
Just build numpy again but skip the ATLAS
It seems to automatically detect it though. Specifically
lapack_lite.so always seems to reference libatlas.
On Mon, Aug 17, 2009 at 5:21 PM, Keith Goodmankwgood...@gmail.com wrote:
On Mon, Aug 17, 2009 at 2:13 PM, Jonathan
Taylorjonathan.tay...@utoronto.ca wrote:
Is there some alternative to
On Mon, Aug 17, 2009 at 2:27 PM, Jonathan
Taylorjonathan.tay...@utoronto.ca wrote:
It seems to automatically detect it though. Specifically
lapack_lite.so always seems to reference libatlas.
On Mon, Aug 17, 2009 at 5:21 PM, Keith Goodmankwgood...@gmail.com wrote:
On Mon, Aug 17, 2009 at 2:13
I am wondering how I might be able to compile numpy without ATLAS on a
ubuntu machine that has an atlas deb installed. It seems that the
numpy build routine automatically detects it.
Thanks for any help,
Jonathan.
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On Aug 12, 2009, at 9:25 AM, Robert Kern wrote:
On Mon, Aug 10, 2009 at 14:19, Maria Liukisliu...@usc.edu wrote:
Hello everybody,
I'm using following versions of Scipy and Numpy packages:
scipy.__version__
'0.7.1'
np.__version__
'1.3.0'
My code uses boolean array to filter 2-dimensional
On Mon, Aug 17, 2009 at 4:25 PM, Jonathan Taylor
jonathan.tay...@utoronto.ca wrote:
I am wondering how I might be able to compile numpy without ATLAS on a
ubuntu machine that has an atlas deb installed. It seems that the
numpy build routine automatically detects it.
Try
BLAS=None
Hello everybody,
While re-implementing some Matlab code in Python, I've run into a
problem of finding a NumPy function analogous to the Matlab's unique
(array, 'rows') to get unique rows of an array. Searching the web,
I've found a similar discussion from couple of years ago with an
On Tue, Aug 18, 2009 at 12:30 AM, Maria Liukisliu...@usc.edu wrote:
Hello everybody,
While re-implementing some Matlab code in Python, I've run into a problem of
finding a NumPy function analogous to the Matlab's unique(array, 'rows')
to get unique rows of an array. Searching the web, I've
On Mon, Aug 17, 2009 at 10:30 PM, Maria Liukis liu...@usc.edu wrote:
Hello everybody,
While re-implementing some Matlab code in Python, I've run into a problem
of finding a NumPy function analogous to the Matlab's unique(array,
'rows') to get unique rows of an array. Searching the web, I've
Josef,
Thanks, I'll try that and will search for your question from last
december :)
Masha
liu...@usc.edu
On Aug 17, 2009, at 9:44 PM, josef.p...@gmail.com wrote:
On Tue, Aug 18, 2009 at 12:30 AM, Maria Liukisliu...@usc.edu wrote:
Hello everybody,
While
On Aug 17, 2009, at 9:51 PM, Charles R Harris wrote:
On Mon, Aug 17, 2009 at 10:30 PM, Maria Liukis liu...@usc.edu wrote:
Hello everybody,
While re-implementing some Matlab code in Python, I've run into a
problem of finding a NumPy function analogous to the Matlab's
unique(array,
On Tue, Aug 18, 2009 at 12:59 AM, Maria Liukisliu...@usc.edu wrote:
On Aug 17, 2009, at 9:51 PM, Charles R Harris wrote:
On Mon, Aug 17, 2009 at 10:30 PM, Maria Liukis liu...@usc.edu wrote:
Hello everybody,
While re-implementing some Matlab code in Python, I've run into a problem
of
On Tue, Aug 18, 2009 at 1:03 AM, josef.p...@gmail.com wrote:
On Tue, Aug 18, 2009 at 12:59 AM, Maria Liukisliu...@usc.edu wrote:
On Aug 17, 2009, at 9:51 PM, Charles R Harris wrote:
On Mon, Aug 17, 2009 at 10:30 PM, Maria Liukis liu...@usc.edu wrote:
Hello everybody,
While re-implementing
On Aug 17, 2009, at 10:03 PM, josef.p...@gmail.com wrote:
On Tue, Aug 18, 2009 at 12:59 AM, Maria Liukisliu...@usc.edu wrote:
On Aug 17, 2009, at 9:51 PM, Charles R Harris wrote:
On Mon, Aug 17, 2009 at 10:30 PM, Maria Liukis liu...@usc.edu
wrote:
Hello everybody,
While
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