Hi all,
I've just changed to cython and old numpy module with a raw C API.
The C module init is removed, and I've put the import_array in the 'pure-cython'
part of the module init. Usual tutorial examples have these lines:
import numpy as NPY
cimport numpy as NPY
NPY.import_array()
But this
Hi Ralf,
On Mon, Dec 5, 2011 at 12:43 PM, Ralf Gommers
ralf.gomm...@googlemail.comwrote:
Hi all,
It's been a little over 6 months since the release of 1.6.0 and the NA
debate has quieted down, so I'd like to ask your opinion on the timing of
1.7.0. It looks to me like we have a healthy
On Tue, Dec 20, 2011 at 10:31, Marc POINOT marc.poi...@onera.fr wrote:
Hi all,
I've just changed to cython and old numpy module with a raw C API.
The C module init is removed, and I've put the import_array in the
'pure-cython'
part of the module init. Usual tutorial examples have these
Hi,
In order to install scipy, I am trying to install numpy 1.6.1. on GNU/linux
redhat 2.6.18.
But, I got error about fortran compiler.
I have gfortran. I do not have f77/f90/g77/g90.
I run :python setup.py build --fcompiler=gfortran
It woks well and tells me that
customize
Hi Jack,
In order to install scipy, I am trying to install numpy 1.6.1. on GNU/linux
redhat 2.6.18.
But, I got error about fortran compiler.
I have gfortran. I do not have f77/f90/g77/g90.
that's good!
I run :
python setup.py build --fcompiler=gfortran
It woks well and tells
Hi,I run : python setup.py build
and got:
building library npymath sourcescustomize GnuFCompilerCould not locate
executable g77Could not locate executable f77customize IntelFCompilerCould not
locate executable ifortCould not locate executable ifccustomize
LaheyFCompilerCould not locate
On 20.12.2011, at 9:01PM, Jack Bryan wrote:
customize Gnu95FCompiler using config
C compiler: gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3
-Wall -Wstrict-prototypes -fPIC
compile options: '-Inumpy/core/src/private -Inumpy/core/src -Inumpy/core
-Inumpy/core/src/npymath
On Tue, Dec 20, 2011 at 20:23, Derek Homeier
de...@astro.physik.uni-goettingen.de wrote:
On 20.12.2011, at 9:01PM, Jack Bryan wrote:
customize Gnu95FCompiler using config
C compiler: gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3
-Wall -Wstrict-prototypes -fPIC
compile
On Tue, Dec 20, 2011 at 3:18 PM, Charles R Harris charlesr.har...@gmail.com
wrote:
Hi Ralf,
On Mon, Dec 5, 2011 at 12:43 PM, Ralf Gommers ralf.gomm...@googlemail.com
wrote:
Hi all,
It's been a little over 6 months since the release of 1.6.0 and the NA
debate has quieted down, so I'd
In article
cafxk4brjwx_whsh7v_b62ug+3q2ctqvewgctf-p-atfe4hq...@mail.gmail.com,
Olivier Delalleau sh...@keba.be wrote:
2011/12/12 Russell E. Owen ro...@uw.edu
In article
cabl7cqjezmtswcupj0kgfjz4xc4arrwn24bi3svzjwcc2t9...@mail.gmail.com,
Ralf Gommers ralf.gomm...@googlemail.com wrote:
In article rowen-74bafa.11292712122...@news.gmane.org,
Russell E. Owen ro...@uw.edu wrote:
In article
cabl7cqjezmtswcupj0kgfjz4xc4arrwn24bi3svzjwcc2t9...@mail.gmail.com,
Ralf Gommers ralf.gomm...@googlemail.com wrote:
On Fri, Dec 9, 2011 at 8:02 PM, Russell E. Owen ro...@uw.edu wrote:
On Tue, Dec 20, 2011 at 10:52 PM, Russell E. Owen ro...@uw.edu wrote:
In article rowen-74bafa.11292712122...@news.gmane.org,
Russell E. Owen ro...@uw.edu wrote:
In article
cabl7cqjezmtswcupj0kgfjz4xc4arrwn24bi3svzjwcc2t9...@mail.gmail.com,
Ralf Gommers ralf.gomm...@googlemail.com
Hi, I have set up PYTHONPATH :
sys.path['', '/mypath/numpy/lib/python2.7/site-packages', '/
mypath/python272/lib/python27.zip', '/
mypath/python272/lib/python2.7', '/
mypath/python272/lib/python2.7/plat-linux2', '/
mypath /python272/lib/python2.7/lib-tk', '/
Howdy,
Is it possible to get non-normalized eigenvectors from scipy.linalg.eig(a,
b)? Preferably just by using numpy.
BTW, Matlab/Octave provides this with its eig(a, b) function but I would
like to use numpy for obvious reasons.
Regards,
Fahri
___
I'm probably missing something, but... Why would you want non-normalized
eigenvectors?
-=- Olivier
2011/12/20 Fahreddın Basegmez mangab...@gmail.com
Howdy,
Is it possible to get non-normalized eigenvectors from scipy.linalg.eig(a,
b)? Preferably just by using numpy.
BTW, Matlab/Octave
I am computing normal-mode frequency response of a mass-spring system. The
algorithm I am using requires it.
On Tue, Dec 20, 2011 at 8:10 PM, Olivier Delalleau sh...@keba.be wrote:
I'm probably missing something, but... Why would you want non-normalized
eigenvectors?
-=- Olivier
Hmm... ok ;) (sorry, I can't follow you there)
Anyway, what kind of non-normalization are you after? I looked at the doc
for Matlab and it just says eigenvectors are not normalized, without
additional details... so it looks like it could be anything.
-=- Olivier
2011/12/20 Fahreddın Basegmez
If I can get the same response as Matlab I would be all set.
Octave results
STIFM
STIFM =
Diagonal Matrix
102000000
0 10200000
00 1020000
00
I should include the scipy response too I guess.
scipy.linalg.eig(STIFM, MASSM)
(array([ 3937.15984097+0.j, 3937.15984097+0.j, 3937.15984097+0.j,
3923.07692308+0.j, 3923.07692308+0.j, 7846.15384615+0.j]),
array([[ 1., 0., 0., 0., 0., 0.],
[ 0., 1., 0., 0., 0., 0.],
On Tue, Dec 20, 2011 at 3:16 PM, Jack Bryan dtustud...@hotmail.com wrote:
Hi,
I have set up PYTHONPATH :
sys.path
['', '/mypath/numpy/lib/python2.7/site-packages', '/
mypath/python272/lib/python27.zip',
'/ mypath/python272/lib/python2.7', '/
Hello,
As a followup to the prior thread on bugs in user defined types in
numpy, I converted my rational number class from C++ to C and switched
to 32 bits to remove the need for unportable 128 bit numbers. It
should be usable as a fairly thorough test case for user defined types
now. It does
On Tue, Dec 20, 2011 at 7:24 PM, Geoffrey Irving irv...@naml.us wrote:
Hello,
As a followup to the prior thread on bugs in user defined types in
numpy, I converted my rational number class from C++ to C and switched
to 32 bits to remove the need for unportable 128 bit numbers. It
should be
Hmm, sorry, I don't see any obvious logic that would explain how Octave
obtains this result, although of course there is probably some logic...
Anyway, since you seem to know what you want, can't you obtain the same
result by doing whatever un-normalizing operation you are after?
-=- Olivier
I don't think I can do that. I can go to the normalized results but not
the other way.
On Tue, Dec 20, 2011 at 9:45 PM, Olivier Delalleau sh...@keba.be wrote:
Hmm, sorry, I don't see any obvious logic that would explain how Octave
obtains this result, although of course there is probably
I have a netcdf file that contains hourly temperature data for a whole
month. I would like to find the maximum temperature within that file and
also the corresponding Latitude and Longitude and Time and then plot this.
Below is the code I have so far. I think everything is working except for
What I don't get is that un-normalized eigenvectors can be pretty much
anything. If you care about the specific output of Matlab / Octave, it
means you understand the particular un-normalization that these programs
use. In that case you should be able to recover it from the normalized
output from
I'm sorry I don't have time to look closely at your code and this may not
be helpful, but just in case... I find it suspicious that you *seem* (by
quickly glancing at the code) to be taking TIME[max(temperature)] instead
of TIME[argmax(temperature)].
-=- Olivier
2011/12/20 questions anon
I think I am interested in the non-normalized eigenvectors not the
un-normalized ones. Once the eig function computes the generalized
eigenvectors I would like to use them as they are.
I would think this would be a common request since the normal-mode
frequency response is used in many different
ok thanks, a quick try at using it resulted in:
IndexError: index out of bounds
but I may need to do abit more investigating to understand how it works.
thanks
On Wed, Dec 21, 2011 at 2:20 PM, Olivier Delalleau sh...@keba.be wrote:
I'm sorry I don't have time to look closely at your code and
This is really excellent. I would like to take a stab at getting this pulled
in to the code base --- and fixing the GIL issue --- if someone hasn't beat me
to it.
Travis
--
Travis Oliphant
(on a mobile)
512-826-7480
On Dec 20, 2011, at 9:24 PM, Geoffrey Irving irv...@naml.us wrote:
Sorry about that. I don't think that terminology is commonly used. This
is what I mean.
Let's say I solve the equations and compute the eigenvalues and
eigenvectors for the given two matrices. I call these results
non-normalized. Then they can be normalized. Once they are normalized if
I
On Tuesday, December 20, 2011, questions anon questions.a...@gmail.com
wrote:
ok thanks, a quick try at using it resulted in:
IndexError: index out of bounds
but I may need to do abit more investigating to understand how it works.
thanks
The assumption is that these arrays are all the same
On Tue, Dec 20, 2011 at 6:24 PM, Geoffrey Irving irv...@naml.us wrote:
Hello,
As a followup to the prior thread on bugs in user defined types in
numpy, I converted my rational number class from C++ to C and switched
to 32 bits to remove the need for unportable 128 bit numbers. It
should be
On Tue, Dec 20, 2011 at 9:10 PM, Mark Wiebe mwwi...@gmail.com wrote:
On Tue, Dec 20, 2011 at 6:24 PM, Geoffrey Irving irv...@naml.us wrote:
Hello,
As a followup to the prior thread on bugs in user defined types in
numpy, I converted my rational number class from C++ to C and switched
to 32
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