Re: [Numpy-discussion] Failure building scipy.special.lambertw
Wed, 16 Dec 2009 02:09:45 +, Chris wrote: Building a current checkout of scipy on OSX 10.6 fails when trying to compile scipy.special.lambertw, giving the message: Warning: No configuration returned, assuming unavailable. The full failure is here: http://img.skitch.com/20091216-d4b8ueqh27g4fqwebu3e3wgfkq.jpg npy_cabs et al. are defined in npy_math.h, and it seems you have an old version of that lying somewhere. Do you have an old version of Numpy installed at /Library/Python/2.6/site-packages/numpy ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
[Numpy-discussion] fsum
Does NumPy have an equivalent to Python's math.fsum? Thanks, Alan Isaac ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Slicing slower than matrix multiplication?
A general question, is there a collection of numpy code snippets as transformed by experts, short of google site:mail.scipy.org/pipermail/numpy-discussion or the like ? And a subquestion, does anyone have a list of algebraic identities for .T vstack etc ? for a real example, to transform dots = np.vstack([ dot( x[j:j+4] .T, imatrix ) .T for j in ...]) cheers -- denis ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Proposal for matrix_rank function in numpy
On Tue, Dec 15, 2009 at 3:16 PM, Matthew Brett matthew.br...@gmail.com wrote: Hi, Is it reasonable to summarize that, to avoid confusion, we keep 'matrix_rank' as the name? I've edited as Robert suggested, attempting to adopt a more suitable tone in the docstring... Thanks a lot, Matthew What comes next when someone offers up a useful function like this? We are using an earlier version of in statsmodels and wouldn't mind seeing this in numpy. Presumably the doctests should be turned into actual tests (noting Robert's comment) to make it more likely that it gets in and an enhancement ticket should be filed? Skipper ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Proposal for matrix_rank function in numpy
Hi, Is it reasonable to summarize that, to avoid confusion, we keep 'matrix_rank' as the name? I've edited as Robert suggested, attempting to adopt a more suitable tone in the docstring... What comes next when someone offers up a useful function like this? We are using an earlier version of in statsmodels and wouldn't mind seeing this in numpy. Presumably the doctests should be turned into actual tests (noting Robert's comment) to make it more likely that it gets in and an enhancement ticket should be filed? I'm happy to write the doctests as tests. My feeling is there is no objection to this function at the moment, so it would be reasonable, unless I hear otherwise, to commit to SVN. Best, Matthew ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Proposal for matrix_rank function in numpy
On Wed, Dec 16, 2009 at 2:13 PM, Matthew Brett matthew.br...@gmail.com wrote: Hi, Is it reasonable to summarize that, to avoid confusion, we keep 'matrix_rank' as the name? I've edited as Robert suggested, attempting to adopt a more suitable tone in the docstring... What comes next when someone offers up a useful function like this? We are using an earlier version of in statsmodels and wouldn't mind seeing this in numpy. Presumably the doctests should be turned into actual tests (noting Robert's comment) to make it more likely that it gets in and an enhancement ticket should be filed? I'm happy to write the doctests as tests. My feeling is there is no objection to this function at the moment, so it would be reasonable, unless I hear otherwise, to commit to SVN. Sounds good. I didn't know you had commit privileges, and I didn't want to see this get lost in the shuffle. Skipper ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Proposal for matrix_rank function in numpy
On Wed, Dec 16, 2009 at 02:13:08PM -0500, Matthew Brett wrote: I'm happy to write the doctests as tests. My feeling is there is no objection to this function at the moment, so it would be reasonable, unless I hear otherwise, to commit to SVN. I have one small comment: I am really happy to see you working on this function. It will be very useful, and its great to have it in a generaly-available package. However, I wonder whether it belongs to numpy.linalg, or scipy.linalg. I was under the impression that we should direct users who have linalg problems to scipy, as it can do much more. My 2 cents, Gaël ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Proposal for matrix_rank function in numpy
Hi, On Wed, Dec 16, 2009 at 2:16 PM, Gael Varoquaux gael.varoqu...@normalesup.org wrote: On Wed, Dec 16, 2009 at 02:13:08PM -0500, Matthew Brett wrote: I'm happy to write the doctests as tests. My feeling is there is no objection to this function at the moment, so it would be reasonable, unless I hear otherwise, to commit to SVN. I have one small comment: I am really happy to see you working on this function. It will be very useful, and its great to have it in a generaly-available package. However, I wonder whether it belongs to numpy.linalg, or scipy.linalg. I was under the impression that we should direct users who have linalg problems to scipy, as it can do much more. It's another option, and one I thought of, but in this case, the use is so ubiquitous in linear algebra, and the function so small, that it would seem a pity to require installing scipy to get it. See you, Matthew ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
[Numpy-discussion] tracking additions to NumPy across versions
Hi all, Is there currently anything in the docstring standard about tracking when functions get added to NumPy? The recent discussion of matrix_rank got me thinking about this. Regards, David ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] tracking additions to NumPy across versions
On 16-Dec-09, at 5:21 PM, David Warde-Farley wrote: Hi all, Is there currently anything in the docstring standard about tracking when functions get added to NumPy? The recent discussion of matrix_rank got me thinking about this. Once again, Google answered for me a few minutes after I asked. I see we have .. versionadded:. http://mail.scipy.org/pipermail/numpy-discussion/2009-July/044043.html Sorry for the noise. David ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
