Re: [Numpy-discussion] Report from SciPy

2008-08-24 Thread Jon Wright
Travis E. Oliphant wrote: ... * Thus 1.2 will not break ABI compatibility but will add new API features. This is really great news (amongst the other good things). Many thanks for keeping the ABI compatible! All the best, Jon . ___

Re: [Numpy-discussion] Report from SciPy

2008-08-24 Thread Bruce Southey
Hi, I think this is a great idea but I am curious about what NumPy will be doing with Python 3. The Python 3 final is scheduled for 1st October release so is there a policy on handling the migration to Python 3 or dual support of the 2 and 3 series? Thanks Bruce On Sat, Aug 23, 2008 at 6:39 PM,

Re: [Numpy-discussion] Report from SciPy

2008-08-24 Thread Alan G Isaac
Bruce Southey wrote: I think this is a great idea but I am curious about what NumPy will be doing with Python 3. The Python 3 final is scheduled for 1st October release so is there a policy on handling the migration to Python 3 or dual support of the 2 and 3 series? As a footnote to this

Re: [Numpy-discussion] Report from SciPy

2008-08-24 Thread Robert Kern
On Sun, Aug 24, 2008 at 10:58, Bruce Southey [EMAIL PROTECTED] wrote: Hi, I think this is a great idea but I am curious about what NumPy will be doing with Python 3. The Python 3 final is scheduled for 1st October release so is there a policy on handling the migration to Python 3 or dual

Re: [Numpy-discussion] [SciPy08] Documentation BoF

2008-08-24 Thread Ondrej Certik
On Fri, Aug 22, 2008 at 10:26 AM, Stéfan van der Walt [EMAIL PROTECTED] wrote: Hi all, This is my personal recollection of the documentation BoF. Feel free to comment or correct the text below. Regards Stéfan Summary of the Documentation Birds-of-a-Feather Session

Re: [Numpy-discussion] Remove ParametricTestCase from numpy.testing

2008-08-24 Thread Jarrod Millman
On Sat, Aug 23, 2008 at 10:23 PM, Alan McIntyre [EMAIL PROTECTED] wrote: Actually, it was removed right after the nose framework was working, but I think a decision was made to keep it around until 1.3 in case somebody was using it, so I put it back. :) After the 1.2 release it can just be

Re: [Numpy-discussion] Remove ParametricTestCase from numpy.testing

2008-08-24 Thread Jarrod Millman
On Sun, Aug 24, 2008 at 3:20 PM, Jarrod Millman [EMAIL PROTECTED] wrote: On Sat, Aug 23, 2008 at 10:23 PM, Alan McIntyre [EMAIL PROTECTED] wrote: Actually, it was removed right after the nose framework was working, but I think a decision was made to keep it around until 1.3 in case somebody

Re: [Numpy-discussion] [SciPy08] Documentation BoF

2008-08-24 Thread Robert Kern
On Sun, Aug 24, 2008 at 15:05, Ondrej Certik [EMAIL PROTECTED] wrote: Currently sphinx can't handle scipy docstrings, can it? It didn't for me at least. It'd be nice if whatever format you agre upon, could work with sphinx's autodoc. We do some preprocessing, I believe. Also I am very

[Numpy-discussion] weights parameter of np.average() doesn't work (BUG?)

2008-08-24 Thread Dan Lenski
Hi all, Is there a good reason why the weights parameter of np.average() doesn't broadcast properly? This is with the Ubuntu Hardy x86_64 numpy package, version 1.0.4. In [293]: a=arange(100).reshape(10,10) # Things work fine when weights have the exact same shape as a In [297]: average(a,

Re: [Numpy-discussion] weights parameter of np.average() doesn't work (BUG?)

2008-08-24 Thread Charles R Harris
On Sun, Aug 24, 2008 at 8:03 PM, Dan Lenski [EMAIL PROTECTED] wrote: Hi all, Is there a good reason why the weights parameter of np.average() doesn't broadcast properly? This is with the Ubuntu Hardy x86_64 numpy package, version 1.0.4. In [293]: a=arange(100).reshape(10,10) # Things

[Numpy-discussion] doing zillions of 3x3 determinants fast

2008-08-24 Thread Daniel Lenski
Hi all, I need to take the determinants of a large number of 3x3 matrices, in order to determine for each of N points, in which of M tetrahedral cells they lie. I arrange the matrices in an ndarray of shape (N,M,5,3,3). As far as I can tell, Numpy doesn't have a function to do determinants

Re: [Numpy-discussion] weights parameter of np.average() doesn't work (BUG?)

2008-08-24 Thread Daniel Lenski
On Sun, 24 Aug 2008 20:57:43 -0600, Charles R Harris wrote: On Sun, Aug 24, 2008 at 8:03 PM, Dan Lenski [EMAIL PROTECTED] wrote: This has been fixed in later versions: In [2]: a=arange(100).reshape(10,10) In [3]: average(a, axis=1, weights=ones(10)) Out[3]: array([ 4.5, 14.5, 24.5,

Re: [Numpy-discussion] doing zillions of 3x3 determinants fast

2008-08-24 Thread Daniel Lenski
On Mon, 25 Aug 2008 03:48:54 +, Daniel Lenski wrote: * it's fast enough for 100,000 determinants, but it bogs due to all the temporary arrays when I try to do 1,000,000 determinants (=72 MB array) I've managed to reduce the memory usage significantly by getting the number of

Re: [Numpy-discussion] doing zillions of 3x3 determinants fast

2008-08-24 Thread Anne Archibald
2008/8/25 Daniel Lenski [EMAIL PROTECTED]: On Mon, 25 Aug 2008 03:48:54 +, Daniel Lenski wrote: * it's fast enough for 100,000 determinants, but it bogs due to all the temporary arrays when I try to do 1,000,000 determinants (=72 MB array) I've managed to reduce the memory

Re: [Numpy-discussion] weights parameter of np.average() doesn't work (BUG?)

2008-08-24 Thread Charles R Harris
On Sun, Aug 24, 2008 at 9:56 PM, Daniel Lenski [EMAIL PROTECTED] wrote: On Sun, 24 Aug 2008 20:57:43 -0600, Charles R Harris wrote: On Sun, Aug 24, 2008 at 8:03 PM, Dan Lenski [EMAIL PROTECTED] wrote: This has been fixed in later versions: In [2]: a=arange(100).reshape(10,10) In [3]:

Re: [Numpy-discussion] doing zillions of 3x3 determinants fast

2008-08-24 Thread Charles R Harris
On Sun, Aug 24, 2008 at 9:48 PM, Daniel Lenski [EMAIL PROTECTED] wrote: Hi all, I need to take the determinants of a large number of 3x3 matrices, in order to determine for each of N points, in which of M tetrahedral cells they lie. I arrange the matrices in an ndarray of shape (N,M,5,3,3).