Re: [Numpy-discussion] fft help

2011-12-29 Thread Burlen Loring
hmmph, I used both fftn and fft2, they both produce the same result. Is there a restriction on the dimension of the input? power of 2 or some such? On 12/29/2011 07:21 AM, Torgil Svensson wrote: This is because fft computes one-dimensional transforms (on each row). Try fft2 instead. //Torgil

Re: [Numpy-discussion] fft help

2011-12-29 Thread Torgil Svensson
Sorry, i should have looked at your image. A few test you can do is 1) does ifft2 give you back the original image? (allclose returned True for a little test I did here) 2) does scipy.fftpack.fft2 yield the same result? //Torgil On Thu, Dec 29, 2011 at 6:32 PM, Burlen Loring

Re: [Numpy-discussion] fft help

2011-12-29 Thread Torgil Svensson
This is because fft computes one-dimensional transforms (on each row). Try fft2 instead. //Torgil fft(a, n=None, axis=-1) Compute the one-dimensional discrete Fourier Transform. fft2(a, s=None, axes=(-2, -1)) Compute the 2-dimensional discrete Fourier Transform fftn(a, s=None,

Re: [Numpy-discussion] NumPy Governance

2011-12-29 Thread Joe Harrington
I had intended to stay quiet in this discussion since I am not a core developer and also no longer even lead the doc project. However, I've watched two organizations go very wrong very fast recently. Both were similar in structure to this one. I've done some study as a result and there are some

[Numpy-discussion] GSOC

2011-12-29 Thread Charles R Harris
Hi All, I thought I'd raise this topic just to get some ideas out there. At the moment I see two areas that I'd like to see addressed. 1. Documentation editor. This would involve looking at the generated documentation and it's organization/coverage as well such things as style and

Re: [Numpy-discussion] fft help

2011-12-29 Thread Burlen Loring
there seems to be some undocumented restriction on dimensions as when I work with 512x512 data things work as expected. On 12/29/2011 09:43 AM, Torgil Svensson wrote: Sorry, i should have looked at your image. A few test you can do is 1) does ifft2 give you back the original image? (allclose

Re: [Numpy-discussion] GSOC

2011-12-29 Thread Ralf Gommers
On Thu, Dec 29, 2011 at 9:50 PM, Charles R Harris charlesr.har...@gmail.com wrote: Hi All, I thought I'd raise this topic just to get some ideas out there. At the moment I see two areas that I'd like to see addressed. 1. Documentation editor. This would involve looking at the generated

Re: [Numpy-discussion] GSOC

2011-12-29 Thread Wes McKinney
On Thu, Dec 29, 2011 at 4:36 PM, Ralf Gommers ralf.gomm...@googlemail.com wrote: On Thu, Dec 29, 2011 at 9:50 PM, Charles R Harris charlesr.har...@gmail.com wrote: Hi All, I thought I'd raise this topic just to get some ideas out there. At the moment I see two areas that I'd like to see

[Numpy-discussion] Problem with changes to f2py

2011-12-29 Thread John Salvatier
Hi Numpy users! I maintain the boundary value problem solver package scikits.bvp_solverhttp://pypi.python.org/pypi/scikits.bvp_solver. It's had problems with f2py for a while, and I am not sure where they are coming from. I made this stackoverflow

Re: [Numpy-discussion] GSOC

2011-12-29 Thread Jaidev Deshpande
Hi! Along with test coverage, have any of you considered any systematic monitoring of NumPy performance? I'm mildly obsessed with performance and benchmarking of NumPy. I used to use a lot of MATLAB until a year back and I tend to compare Python performance with it all the time. I generally

Re: [Numpy-discussion] Numpy performance testing

2011-12-29 Thread jason-sage
On 12/29/11 10:37 PM, Jaidev Deshpande wrote: Hi! Along with test coverage, have any of you considered any systematic monitoring of NumPy performance? I'm mildly obsessed with performance and benchmarking of NumPy. I used to use a lot of MATLAB until a year back and I tend to compare Python