[Numpy-discussion] [numpy.scons] Some really basic starting info

Hi, Since several people have been asking me how to use scons to build python modules, I have started a wiki page on numpy wiki: http://scipy.org/scipy/numpy/wiki/NumpyScons This is really preliminary, but it should be enough to get you started if you have simple needs (building a Ctypes e

Re: [Numpy-discussion] Error in deallocation ?

Does someone have a clue ? I'm starting getting this with all my datasets, always at the same line ! Matthieu 2007/10/23, Matthieu Brucher <[EMAIL PROTECTED]>: > > The problem reappeared today, same error, always in the line : > xp = (x-self.loc) * (1/self.scale) > > When multiplying an array wit

[Numpy-discussion] NumPy 1.0.4 release

Hello, I just got back from a camping trip and haven't had time to check the status of the remaining open tickets; but it looks like there are a few tickets that are ready to close. So I am pushing the schedule back a week (with the hope that we can close a few more tickets before the 1.0.4 relea

Re: [Numpy-discussion] Getting an item in an array with its coordinates given by another array

> > > Little correction, only c[(2,3)] gives me what I expect, not c[[2,3]], > which > > is even stranger. > > c[(2,3)] is the same as c[2,3] and obviously works as you expected. Well, this is not indicated in the documentation. c[[2,3]] is refered to as 'advanced indexing' in the numpy book.

Re: [Numpy-discussion] Memory leak in ndarray, more info

Hi Karol Thank you very much for the sleuth work here. We are in the midst of software ATP so it helps a lot that I will be able to resolve this bug properly. Robert On 10/29/07, Karol Langner <[EMAIL PROTECTED]> wrote: > > I opened a ticket for this (#602). Hopefully someone will confirm that >

Re: [Numpy-discussion] Getting an item in an array with its coordinates given by another array

Matthieu Brucher gmail.com> writes: > > > Little correction, only c[(2,3)] gives me what I expect, not c[[2,3]], which > is even stranger. c[(2,3)] is the same as c[2,3] and obviously works as you expected. c[[2,3]] is refered to as 'advanced indexing' in the numpy book. It will return element

Re: [Numpy-discussion] Request for advice: project to get NumPy working in IronPython

Travis E. Oliphant wrote: >>> An IronPython compatible version of NumPy would be great.Of course >>> it could be done by using C# to write NumPy, but I'm not sure that this >>> would really be any less work than creating a "glue" layer that allowed >>> most (or all) C-Python extensions to wo

Re: [Numpy-discussion] vectorizing loops

Sebastian Haase wrote: > On 10/26/07, David Cournapeau <[EMAIL PROTECTED]> wrote: > >> P.S: IMHO, this is one of the main limitation of numpy (or any language >> using arrays for speed; and this is really difficult to optimize: you >> need compilation, JIT or similar to solve those efficiently).

Re: [Numpy-discussion] Memory leak in ndarray, more info

Karol Langner wrote: > I opened a ticket for this (#602). Hopefully someone will confirm that adding > that Py_DECREF call fixes the leak and someone with write access patches it > in svn. > Thanks for looking into this and isolating the problem... -Travis O. __

Re: [Numpy-discussion] Memory leak in ndarray, more info

I opened a ticket for this (#602). Hopefully someone will confirm that adding that Py_DECREF call fixes the leak and someone with write access patches it in svn. - Karol -- written by Karol Langner Sun Oct 28 23:29:18 EDT 2007 ___ Numpy-discussion ma

Re: [Numpy-discussion] Array struct

Hi, I think you will have to use non-contiguous arrays, it should be possible. But I can't help you as I never use them. Matthieu 2007/10/28, Sean Ross-Ross <[EMAIL PROTECTED]>: > > Hi, I am looking to create an __array_struct__ member for a c++ > vector> i have wrapped in python, where cppObj

Re: [Numpy-discussion] Memory leak in ndarray, more info

On Friday 26 October 2007 05:39, Robert Crida wrote: > I recently posted about a memory leak in numpy and failed to mention the > version. The leak manifests itself in numpy-1.0.3.1 but is not present in > numpy-1.0.2 > > The following code reproduces the bug: > > import numpy as np > > a = np.arra

[Numpy-discussion] Array struct

Hi, I am looking to create an __array_struct__ member for a c++ vector> i have wrapped in python, where cppObj contains an array of floats. Currently I have created an __array_struct__ for the cppObj and in python I iterate over the vector of vectors and put all of the data into a 1-d arr

Re: [Numpy-discussion] Getting an item in an array with its coordinates given by another array

Little correction, only c[(2,3)] gives me what I expect, not c[[2,3]], which is even stranger. 2007/10/28, Matthieu Brucher <[EMAIL PROTECTED]>: > > Hi, > > I'm trying to get an item in an array when I only have another array > giving the position. > > For instance: > > >>> c = numpy.arange(0., 3*

[Numpy-discussion] Getting an item in an array with its coordinates given by another array

Hi, I'm trying to get an item in an array when I only have another array giving the position. For instance: >>> c = numpy.arange(0., 3*4*5).reshape((3,4,5)) >>> c***(numpy.array((2,3), dtype=int)) [55, 56, 57, 58, 59] I'm trying to figure what to put between c and ((2,3)). I supposed that the t