Re: [Numpy-discussion] FFT of 2D array along last axis

2014-11-12 Thread Brad Buran
n 2014-11-07 00:51:02, Brad Buran wrote: > > On Windows 7 using Anaconda with numpy 1.9.1 I get False (indicating that > > the FFT is not treating each row separately). When I test on a Ubuntu > box > > using numpy 1.9.1 I get True. Is this expected behavior? If I >

[Numpy-discussion] FFT of 2D array along last axis

2014-11-06 Thread Brad Buran
Given the following code: import numpy as np x = np.random.random(size=2**14) y = x.copy() z = np.concatenate([x[np.newaxis], y[np.newaxis]], axis=0) print(np.all(np.fft.fft(z, axis=-1)[0] == np.fft.fft(z[0]))) On Windows 7 using Anaconda with numpy 1.9.1 I get False (indicating that the FFT is n

Re: [Numpy-discussion] skip samples in random number generator

2014-10-02 Thread Brad Buran
Thanks for the great input. The idea of implementing jump-ahead in numpy.random would be a very nice feature, but I don't currently have the time to work on implementing such a feature. For now, it seems the simplest approach is to cache the RandomState and reuse that later. Brad On Thu, Oct 2,

[Numpy-discussion] skip samples in random number generator

2014-10-02 Thread Brad Buran
Given the following: from numpy import random rs = random.RandomState(seed=1) # skip the first X billion samples x = rs.uniform(0, 10) How do I accomplish "skip the first X billion samples" (e.g. 7.2 billion)? I see that there's a numpy.random.RandomState.set_state which accepts (among other par

Re: [Numpy-discussion] numpydoc.traitsdoc error

2012-03-25 Thread Brad Buran
them for testing, but it appears that they do not use the traitsdoc extension. Brad On Sat, Mar 24, 2012 at 5:39 PM, Ralf Gommers wrote: > > > On Sat, Mar 24, 2012 at 6:58 PM, Brad Buran wrote: >> >> Not sure if this is the appropriate place to report the issue, but >

[Numpy-discussion] numpydoc.traitsdoc error

2012-03-24 Thread Brad Buran
Not sure if this is the appropriate place to report the issue, but I've been getting the following error when trying to build my docs using Sphinx 1.1.3: File "C:\Python27\lib\site-packages\numpydoc\numpydoc.py", line 36, in mangle_docstrings doc = get_doc_object(obj, what, u"\n".join(lines)

Re: [Numpy-discussion] reduce array by computing min/max every n samples

2010-06-21 Thread Brad Buran
same time would be > > useful. I should note that there is a numpy.ptp() function that > > returns the difference between the min and the max, but I don't see > > anything that returns the actual values. > > > > Ben Root > > > > On Thu, Jun

Re: [Numpy-discussion] reduce array by computing min/max every n samples

2010-06-21 Thread Brad Buran
that > returns the actual values. > > Ben Root > > On Thu, Jun 17, 2010 at 4:50 PM, Brad Buran wrote: >> >> I have a 1D array with >100k samples that I would like to reduce by >> computing the min/max of each "chunk" of n samples. Right now, my >>

[Numpy-discussion] reduce array by computing min/max every n samples

2010-06-17 Thread Brad Buran
I have a 1D array with >100k samples that I would like to reduce by computing the min/max of each "chunk" of n samples. Right now, my code is as follows: n = 100 offset = array.size % downsample array_min = array[offset:].reshape((-1, n)).min(-1) array_max = array[offset:].reshape((-1, n)).max(-1