Re: [Numpy-discussion] ANN: Numpy 1.6.1 release candidate 1

On Mon, Jun 13, 2011 at 8:31 PM, Pauli Virtanen wrote: > On Mon, 13 Jun 2011 11:08:18 -0500, Bruce Southey wrote: > [clip] >> OSError: >> /usr/local/lib/python3.2/site-packages/numpy/core/multiarray.pyd: cannot >> open shared object file: No such file or directory > > I think that's a result of Py

[Numpy-discussion] multiprocessing (shared memory) with numpy array multiplication

Hi all, Thanks for your replies. > Brandt Belson wrote: > > Unfortunately I can't flatten the arrays. I'm writing a library where > > the user supplies an inner product function for two generic objects, and > > almost always the inner product function does large array > > multiplications at some p

Re: [Numpy-discussion] ANN: Numpy 1.6.1 release candidate 1

On Mon, 13 Jun 2011 11:08:18 -0500, Bruce Southey wrote: [clip] > OSError: > /usr/local/lib/python3.2/site-packages/numpy/core/multiarray.pyd: cannot > open shared object file: No such file or directory I think that's a result of Python 3.2 changing the extension module file naming scheme (IIRC to

Re: [Numpy-discussion] ANN: Numpy 1.6.1 release candidate 1

On 13.06.2011, at 6:19PM, Ralf Gommers wrote: > >> I used wget using the direct link and it eventually got the complete >> file after multiple tries. >> > Yes, SF is having a pretty bad day. > I eventually also got the tarball through the fink/debian mirror list; no failures on OS X 10.5 i386

Re: [Numpy-discussion] ANN: Numpy 1.6.1 release candidate 1

On 06/13/2011 11:19 AM, Ralf Gommers wrote: On Mon, Jun 13, 2011 at 6:08 PM, Bruce Southey > wrote: On 06/13/2011 10:11 AM, Derek Homeier wrote: I used wget using the direct link and it eventually got the complete file after multiple tries. Yes, SF is

Re: [Numpy-discussion] Adjacent matrix

Hi, You can probably find some inspiration from https://github.com/scikit-learn/scikit-learn/blob/master/scikits/learn/feature_extraction/image.py Gaël ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/n

[Numpy-discussion] Adjacent matrix

Hi all, I'm reproducing a algorithm from a paper. This paper takes as input a binary volumetric matrix. In a step from this paper, from this binary volumetric matrix a adjacent matrix is calculated, thisadjacent matrix is calculated as bellow: "Find all of the grid points in that lie adjacent to

Re: [Numpy-discussion] Install error for numpy 1.6

On Jun 13, 1:08 pm, Scott Sinclair wrote: > On 12 June 2011 21:08, Ralf Gommers wrote: > > > > > > > > > > > > > On Sun, Jun 12, 2011 at 9:00 PM, Laurent Gautier wrote: > > >> I did not find the following problem reported. > > >> When trying to install Numpy 1.6 with Python 2.7.1+ (r271:86832)

Re: [Numpy-discussion] numpy build: automatic fortran detection

In article , Ralf Gommers wrote: > On Thu, Jun 9, 2011 at 11:46 PM, Russell E. Owen wrote: > > > What would it take to automatically detect which flavor of fortran to > > use to build numpy on linux? > > > > You want to figure out which compiler was used to build BLAS/LAPACK/ATLAS > and check

Re: [Numpy-discussion] Using multiprocessing (shared memory) with numpy array multiplication

Looking at the code the arrays that you are multiplying seem fairly small (300, 200) and you have 50 of them. So it might the case that there is not enough computational work to compensate for the cost of forking new processes and communicating the results. Have you tried larger arrays and more of

Re: [Numpy-discussion] Using multiprocessing (shared memory) with numpy array multiplication

Brandt Belson wrote: > Unfortunately I can't flatten the arrays. I'm writing a library where > the user supplies an inner product function for two generic objects, and > almost always the inner product function does large array > multiplications at some point. The library doesn't get to know abo

Re: [Numpy-discussion] fixing up datetime

I'm joining this late (I've been traveling), but it might be useful to look at the fairly new R module "lubridate". They have put quite some thought into simplifying date handling, and when I have used it I have generally been quite pleased. The documentation is quite readable. Just Google it and

Re: [Numpy-discussion] ANN: Numpy 1.6.1 release candidate 1

On Mon, Jun 13, 2011 at 6:08 PM, Bruce Southey wrote: > On 06/13/2011 10:11 AM, Derek Homeier wrote: > > I used wget using the direct link and it eventually got the complete > file after multiple tries. > Yes, SF is having a pretty bad day. > > Anyhow, the tests passed for me on Linux 64-bit fo

Re: [Numpy-discussion] ANN: Numpy 1.6.1 release candidate 1

On 06/13/2011 10:11 AM, Derek Homeier wrote: > Hi Ralf, > >> FAIL: Test custom format function for each element in array. >> -- >> >> This test is not in 1.6.x, only in master. I suspect the same is true for >> the datetime tests,

Re: [Numpy-discussion] np.histogram: upper range bin

Peter Butterworth wrote: > Consistent bin width is important for my applications. With floating > point numbers I usually shift my bins by a small offset to ensure > values at bin edges always fall in the correct bin. > With the current np.histogram behavior you _silently_ get a wrong > count in th

Re: [Numpy-discussion] ANN: Numpy 1.6.1 release candidate 1

Hi Ralf, > > FAIL: Test custom format function for each element in array. > -- > > This test is not in 1.6.x, only in master. I suspect the same is true for the > datetime tests, but perhaps not for the S5/U5 thing. Can you cle

Re: [Numpy-discussion] ANN: Numpy 1.6.1 release candidate 1

Hi Derek, On Mon, Jun 13, 2011 at 4:17 PM, Derek Homeier < de...@astro.physik.uni-goettingen.de> wrote: > Hi Ralf, > > > I am pleased to announce the availability of the first release candidate > of NumPy 1.6.1. This is a bugfix release, list of fixed bugs: > > #1834 einsum fails for specific s

Re: [Numpy-discussion] ANN: Numpy 1.6.1 release candidate 1

Hi Ralf, > I am pleased to announce the availability of the first release candidate of > NumPy 1.6.1. This is a bugfix release, list of fixed bugs: > #1834 einsum fails for specific shapes > #1837 einsum throws nan or freezes python for specific array shapes > #1838 object <-> structured ty

Re: [Numpy-discussion] numpy type mismatch

2011/6/10 Olivier Delalleau > 2011/6/10 Charles R Harris > >> >> >> On Fri, Jun 10, 2011 at 3:43 PM, Benjamin Root wrote: >> >>> >>> >>> On Fri, Jun 10, 2011 at 3:24 PM, Charles R Harris < >>> charlesr.har...@gmail.com> wrote: >>> On Fri, Jun 10, 2011 at 2:17 PM, Benjamin Root w

[Numpy-discussion] ANN: Numpy 1.6.1 release candidate 1

Hi, I am pleased to announce the availability of the first release candidate of NumPy 1.6.1. This is a bugfix release, list of fixed bugs: #1834 einsum fails for specific shapes #1837 einsum throws nan or freezes python for specific array shapes #1838 object <-> structured type arrays regres

Re: [Numpy-discussion] Install error for numpy 1.6

On 12 June 2011 21:08, Ralf Gommers wrote: > > On Sun, Jun 12, 2011 at 9:00 PM, Laurent Gautier wrote: >> >> I did not find the following problem reported. >> >> When trying to install Numpy 1.6 with Python 2.7.1+ (r271:86832), gcc >> 4.5.2, and pip 1.0.1 (through a virtualenv 1.4.2 Python) it fa