Re: [Numpy-discussion] State-of-the-art to use a C/C++ library from Python

2016-08-31 Thread Jason Newton
he language and environment first-class (like Boost.Python/pybind). Since this thread is a survey over state and options it's my intent just to make sure readers have something bare in mind for current pros/cons of the approaches. -Jason On Wed, Aug 31, 2016 at 2:17 PM, Ian Henriksen <

Re: [Numpy-discussion] State-of-the-art to use a C/C++ library from Python

2016-08-31 Thread Jason Newton
interested to see ndarray gain support for pybind interoperability... -Jason On Wed, Aug 31, 2016 at 1:08 PM, David Morris wrote: > On Wed, Aug 31, 2016 at 2:28 PM, Michael Bieri wrote: > >> Hi all >> >> There are several ways on how to use C/C++ code from Python with NumPy,

Re: [Numpy-discussion] deterministic, reproducible matmul / __matmult_

2016-07-18 Thread Jason Newton
On Mon, Jul 11, 2016 at 3:27 PM, Pauli Virtanen wrote: > Mon, 11 Jul 2016 13:01:49 -0400, Jason Newton kirjoitti: >> Does the ML have any ideas on how one could get a matmul that will not >> allow any funny business on the evaluation of the products? Funny >> business h

[Numpy-discussion] deterministic, reproducible matmul / __matmult_

2016-07-11 Thread Jason Newton
ebop.cs.berkeley.edu/reproblas/ https://exblas.lip6.fr/ -Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org https://mail.scipy.org/mailman/listinfo/numpy-discussion

[Numpy-discussion] correct sizeof for ndarray

2015-10-19 Thread Jason Newton
"sizeof" a structure? AFAIK this is the size of the last item + it's offset. If this doesn't exist... shouldn't it? Thanks, Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org https://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Python needs goto

2015-09-24 Thread Jason Newton
ontext loss that way. -Jason On Thu, Sep 24, 2015 at 1:54 PM, Alexander Eberspächer < alex.eberspaec...@gmail.com> wrote: > On 24.09.2015 13:25, Christophe Bal wrote: > > > Can you give an example where GOTO is useful ? > > I think those pieces of code are best understood wit

[Numpy-discussion] review of #6191

2015-09-11 Thread jason
doco patch to address https://github.com/numpy/numpy/issues/6191 https://github.com/numpy/numpy/compare/master...pizzathief:issue6191 ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Change default order to Fortran order

2015-08-02 Thread Jason Newton
in different outputs, but matlab seems perfectly happy living on an island where it's the only implementation providing a specific answer given a specific input. - Numpy is 0 based...? Good luck keeping it all sane though, -Jason On Sun, Aug 2, 2015 at 7:16 PM, Kang Wang wrote:

Re: [Numpy-discussion] Proposal: Deprecate np.int, np.float, etc.?

2015-07-31 Thread Jason Newton
On Fri, Jul 31, 2015 at 5:19 PM, Nick Papior wrote: > -- > > Kind regards Nick Papior > On 31 Jul 2015 17:53, "Chris Barker" wrote: > > > > On Thu, Jul 30, 2015 at 11:24 PM, Jason Newton wrote: > >> > >> This really needs changing though. sc

Re: [Numpy-discussion] Proposal: Deprecate np.int, np.float, etc.?

2015-07-30 Thread Jason Newton
uture in exchange for a few lashings for the remainder of the year. Thankfully stdint like types have existed for quite some times so protocol descriptions have been correct most of the time. -Jason On Fri, Jul 24, 2015 at 8:51 AM, Julian Taylor < jtaylor.deb...@googlemail.com> wrote: &

Re: [Numpy-discussion] constructing record dtypes from the c-api

2015-07-24 Thread Jason Newton
side. I plan on building a helper class to generate the dictionaries for this subroutine since something akin to the list dtype specification is more user-friendly (even towards me). -Jason On Thu, Jul 23, 2015 at 7:55 PM, Jason Newton wrote: > Hi folks, > > The moderator for the

[Numpy-discussion] constructing record dtypes from the c-api

2015-07-23 Thread Jason Newton
some complicated and time consuming code (both of computer and developer) when ndarrays are what's called for. Related - would one work with record dtypes passed to C? How would one lookup fields and offsets within a structure? Thanks for any advisement! -Jason ___

Re: [Numpy-discussion] svd error checking vs. speed

2014-02-17 Thread Jason Grout
#x27;t extensively use the linalg.svd routine in practice, so I defer to those that use it. Thanks, Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Announcing Bokeh 0.2: interactive web plotting for Python

2013-10-24 Thread Jason Grout
On 10/24/13 1:42 PM, Peter Wang wrote: > On Thu, Oct 24, 2013 at 10:11 AM, Jason Grout > mailto:jason-s...@creativetrax.com>> wrote: > > It would be really cool if you could hook into the new IPython comm > infrastructure to push events back to the server in

Re: [Numpy-discussion] Announcing Bokeh 0.2: interactive web plotting for Python

2013-10-24 Thread Jason Grout
mple: https://github.com/sagemath/sagecell/blob/master/static/compute_server.js#L768 and the python code is at https://github.com/sagemath/sagecell/blob/master/graphics.py#L399 Thanks, Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.

Re: [Numpy-discussion] Announcing Bokeh 0.2: interactive web plotting for Python

2013-10-24 Thread Jason Grout
in github or somewhere to see how you made these plots. Since Bokeh is (at least partly) about making beautiful plots easy, showing off the source code is half of the story. Thanks, Jason -- Jason Grout ___ NumPy-Discussion mailing list NumPy-D

Re: [Numpy-discussion] Announcing Bokeh 0.2: interactive web plotting for Python

2013-10-24 Thread Jason Grout
On 10/24/13 6:35 AM, Jason Grout wrote: > This looks really cool. I was checking out how easy it would be to > embed in the Sage Cell Server [1]. I briefly looked at the code, and it > appears that the IPython notebook mode does not use nodejs, redis, > gevent, etc.? Is that righ

Re: [Numpy-discussion] Announcing Bokeh 0.2: interactive web plotting for Python

2013-10-24 Thread Jason Grout
//github.com/ContinuumIO/bokeh This looks really cool. I was checking out how easy it would be to embed in the Sage Cell Server [1]. I briefly looked at the code, and it appears that the IPython notebook mode does not use nodejs, redis, gevent, etc.? Is that

Re: [Numpy-discussion] Proposal of new function: iteraxis()

2013-04-26 Thread Jason Grout
or what it's worth) to being conservative with API changes as a first resort. Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Issues to fix for 1.7.0rc2.

2013-02-05 Thread Jason Grout
. So it doesn't matter to us which way the decision goes. Thanks, Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Issues to fix for 1.7.0rc2.

2013-02-05 Thread Jason Grout
>> print None or None None Was this change between 1.5.1 and 1.7 intentional? Thanks, Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] DARPA funding for Blaze and passing the NumPy torch

2012-12-17 Thread Jason Grout
mple, I see an article up on Hacker News about blaze, but there doesn't seem to be a mention of big funding. Has someone written a press release? Has someone submitted the grant news to Hacker News or Slashdot, where you might attract attention and mindshare? Thanks, Jason

[Numpy-discussion] IPython receives $1.15 million from Alfred P. Sloan Foundation

2012-12-12 Thread Jason Grout
It's great to see a significant open-source python project that many of us use on a day-to-day basis get such great funding! Thanks, Jason -- Jason Grout ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/ma

Re: [Numpy-discussion] [matplotlib-devel] GitHub attachments

2012-12-07 Thread Jason Grout
ud, and then substitute in their standard markup for embedding images. So it's just replacing the "upload your file to somewhere" to "we'll upload it automatically to our own cloud." That said, it is really important and very nic

Re: [Numpy-discussion] matrix norm

2012-10-22 Thread Jason Grout
the last person confused about it, given the conventions in the other software packages. Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] matrix norm

2012-10-22 Thread Jason Grout
On 10/22/12 3:03 PM, Pauli Virtanen wrote: > Jason Grout creativetrax.com> writes: > [clip] >> I think we've established that the other software mentioned does indeed >> use the spectral norm by default. I'm still curious: what was the >> reason for breaking

Re: [Numpy-discussion] matrix norm

2012-10-22 Thread Jason Grout
On 10/22/12 10:44 AM, Jason Grout wrote: > I'm curious why scipy/numpy defaults to calculating the Frobenius norm > for matrices [1], when Matlab, Octave, and Mathematica all default to > calculating the induced 2-norm [2]. Is it solely because the Frobenius > norm is easier to

Re: [Numpy-discussion] matrix norm

2012-10-22 Thread Jason Grout
as the default. Does someone have matlab to test their implementation? The fact that matlab has a separate command for the Frobenius norm indicates that they also may be using the spectral norm for the default matrix norm. Thanks, Jason ___ NumPy-Disc

Re: [Numpy-discussion] matrix norm

2012-10-22 Thread Jason Grout
On 10/22/12 10:56 AM, Charles R Harris wrote: > > > On Mon, Oct 22, 2012 at 9:44 AM, Jason Grout > mailto:jason-s...@creativetrax.com>> wrote: > > I'm curious why scipy/numpy defaults to calculating the Frobenius norm > for matrices [1], when Matlab, Octave

[Numpy-discussion] matrix norm

2012-10-22 Thread Jason Grout
n for doing things differently? Thanks, Jason [1] http://docs.scipy.org/doc/numpy/reference/generated/numpy.linalg.norm.html [2] * Matlab (http://www.mathworks.com/help/matlab/ref/norm.html). * Octave (http://www.network-theory.co.uk/docs/octave3/octave_198.html). * Mathematica

Re: [Numpy-discussion] Access to SPARC 64

2012-08-30 Thread Jason Grout
t is currently marked as a > blocker for 1.7.0. You might ask on sage-devel. They were just talking about SPARC machines the other day on sage-devel. Thanks, Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy

Re: [Numpy-discussion] building a numpy egg for centos

2012-07-24 Thread Jason Stelzer
On Tue, Jul 24, 2012 at 10:06 AM, Robert Kern wrote: > This was an explicit design choice. numpy.distutils will never import > setuptools for you even if you have it installed. It will simply > integrate with it if you have run the setup.py script from something > that has setuptools imported, lik

[Numpy-discussion] building a numpy egg for centos

2012-07-24 Thread Jason Stelzer
I'm building numpy 1.6.2 for python 2.5 on centos 5.8. I ran into a problem where bdist_egg was not working. It seems there's a minor bug in numpy/distutils/core.py Under python 2.5 the check for setuptools does not work, so the bdist target for eggs is not available. I've attached a patch that

Re: [Numpy-discussion] Meta: help, devel and stackoverflow

2012-06-30 Thread Jason Grout
In fact, since it's easy to switch the tags, it's easier than a mailing list to shuttle a question to the right "mailing list"/tag. Thanks, Jason -- Jason Grout ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Meta: help, devel and stackoverflow

2012-06-30 Thread Jason Grout
t good for - discussion. Or maybe it's just I'm not >> used to it. > > I'm in the same boat as you, but this discussion has made me much more > interested in starting to use it I'm curious: do you mean using stackexchange.com itself, or us

Re: [Numpy-discussion] Meta: help, devel and stackoverflow

2012-06-28 Thread Jason Grout
ask.sagemath.org (last commit to askbot was yesterday :). I think it's as easy as 'pip install askbot' [1] Jason [1] http://askbot.org/doc/install.html ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Created NumPy 1.7.x branch

2012-06-26 Thread Jason Grout
efore having to face a huge decision Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Created NumPy 1.7.x branch

2012-06-26 Thread Jason Grout
t all. There have been multiple occasions where we called on people to move their discussion to sage-flame, and overall it's worked very nicely. Having a public forum to argue things out seems to help, and my guess is that most of us may peek at it every now and then for kicks and giggle

Re: [Numpy-discussion] NumPy 1.7 release delays

2012-06-26 Thread Jason Grout
. Here's an issue that prevents Sage from upgrading to 1.6.2 from 1.5.1: https://github.com/numpy/numpy/issues/291 People are actively working on it (Thanks! Travis commented 13 hours ago about the root of the problem, I think). Thanks, Jason

Re: [Numpy-discussion] Issue Tracking

2012-05-01 Thread Jason Grout
ever I want to search trac, I just type "t " (t space) in the URL bar of Chrome, then type whatever I'm searching for. Google almost always pulls up the right ticket in the top few hits. And it's way faster than the trac search. Thanks, Jason __

Re: [Numpy-discussion] Issue Tracking

2012-05-01 Thread Jason Grout
don't need to spend our time setting up complicated infrastructure. I do wish we could use Google Code issues with Github pull requests, though :). Thanks, Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Issue Tracking

2012-05-01 Thread Jason Grout
y download all of its data to make an off-site backup not tied to a commercial company. > > > It would be good to hear from users of the IPython github issue tracker > to see how they like it "in the wild". How problematic are these issues > in practice. Does it reduce or increase the participation in issue > tracking both by users and by developers. I agree; it would be good to hear from someone with wider and broader experience with the github tracker on these issues. Thanks, Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Issue Tracking

2012-04-30 Thread Jason Grout
suppose the biggest frustrating part about it is that it is closed source, so even if I did want to scratch an itch, I can't. That said, it is nice to have code and dev conversations happening in one place. There are great things about github issues, of course. But I'm not s

Re: [Numpy-discussion] What is consensus anyway

2012-04-25 Thread Jason Grout
On 4/25/12 11:08 PM, Puneeth Chaganti wrote: > On Thu, Apr 26, 2012 at 6:41 AM, Travis Oliphant wrote: > [snip] >> >> It would be nice if every pull request created a message to this list.Is >> that even possible? > > That is definitely possible and shouldn

Re: [Numpy-discussion] What is consensus anyway

2012-04-25 Thread Jason Grout
fy (via hitting a URL) about lots of events. https://github.com/blog/964-all-of-the-hooks http://developer.github.com/v3/repos/hooks/ I haven't actually used it (just read the docs), so I may be mistaken... Thanks, Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Proposed Roadmap Overview

2012-02-27 Thread Jason McCampbell
g. > > > I think I missed that - is it on git somewhere? > > > I thought so, but I can't find it either. We should ask Jason McCampbell > of Enthought where the code is located. Here are the distributed eggs: > http://www.enthought.com/repo/.iron/ > > -Travis >

[Numpy-discussion] Nature Editorial: Science Software should be Open Source

2012-02-27 Thread Jason Grout
Jan Groenewald posted this link to the Sage development list, and I thought people here would be interested (and I figured people on the matplotlib, scipy, and ipython lists would see it here too): http://www.nature.com/nature/journal/v482/n7386/full/nature10836.html Thanks, Jason

Re: [Numpy-discussion] Proposed Roadmap Overview

2012-02-17 Thread Jason Grout
ways, I've said enough on this, and we've seen enough problems in discussions on this list already. Many people in the numpy community know Cython well enough to judge these things for themselves. Thanks, Jason ___ NumPy-Discussion mail

Re: [Numpy-discussion] Proposed Roadmap Overview

2012-02-17 Thread Jason Grout
On 2/17/12 9:54 PM, Sturla Molden wrote: > We would have to write a C++ programming tutorial that is based on Pyton > knowledge instead of C knowledge. I personally would love such a thing. It's been a while since I did anything nontrivial on my own in

Re: [Numpy-discussion] Proposed Roadmap Overview

2012-02-17 Thread Jason Grout
correctness and stability, I'm sure the Cython devel list would love to hear about it. They seem to be pretty concerned about stability and correctness to me, though I admit I don't follow the list extremely deeply. I don't trust any automated tool to generate bug-free code. I don't even trust myself to generate bug-free code :). Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Numpy governance update

2012-02-16 Thread Jason Grout
"real" pull request > ;-) Time to start submitting lots of 1-line commits and typo fixes to pad my karma :). Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Numpy governance update

2012-02-16 Thread Jason Grout
On 2/16/12 6:23 AM, Francesc Alted wrote: > On Feb 16, 2012, at 12:15 PM, Jason Grout wrote: > >> On 2/15/12 6:27 PM, Dag Sverre Seljebotn wrote: >>> But in the very end, when agreement can't be reached by other >>> means, the developers are the one maki

Re: [Numpy-discussion] Numpy governance update

2012-02-16 Thread Jason Grout
resting point. I hope I'm not pitching a log onto the fire here, but in numpy's case, there are very many capable developers on other projects who depend on numpy who could credibly threaten a fork if they felt numpy was drastically going wrong. Jason __

Re: [Numpy-discussion] Numpy governance update - was: Updated differences between 1.5.1 to 1.6.1

2012-02-14 Thread Jason Grout
e, would the Foundation apply to mentor Google Summer of Code projects? Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Issue Tracking

2012-02-14 Thread Jason Grout
till have to change versions by hand and start the builders by hand (in theory, this could be automated but in practice, this is not so easy). Thanks, Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Issue Tracking

2012-02-13 Thread jason-sage
e do have a number of systems we build and test Sage on, though I don't think we have continuous integration yet. I've CCd Jeroen Demeyer, who is the current release manager for Sage. Jeroen, do we have an automatic buildbot system for Sage? Thanks,

Re: [Numpy-discussion] Migrating issues to GitHub

2012-02-11 Thread Jason Grout
the issue number does not appear in the listing. So when you are trying to refer to another issue, and try finding it by scanning the list, you have to mouse over the title and extract the information mentally from the url. Google code issues are much, much bette

Re: [Numpy-discussion] Migrating issues to GitHub

2012-02-11 Thread Jason Grout
ub, but still maybe useful) Thanks, Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Numpy performance testing

2011-12-29 Thread jason-sage
Here is the discussion: https://groups.google.com/forum/#!topic/sage-devel/8lq3twm9Olc Here is our ticket tracking the issue: http://trac.sagemath.org/sage_trac/ticket/12168 Here are some examples of the analysis: http://sagenb.org/home/pub

Re: [Numpy-discussion] consensus

2011-10-29 Thread Jason Grout
f it's just me ;) Just a thought: what if this also worked: a.mask[0:2]=np.NA as a synonym for a.mask[0:2]=True? Would that be less confusing, and/or would it be less powerful or extensible in important ways? Thanks, Jason Grout ___ NumPy-Di

Re: [Numpy-discussion] consensus

2011-10-28 Thread Jason Grout
ictating code to someone (e.g., teaching, or helping someone verbally), it's going to be hard to distinguish between the verbal sounds of "NA" and "MA". And from a lurker (me), thanks for the discussion. I find it very interesting to read. Thanks, Jason Grout

Re: [Numpy-discussion] A Foundation for the support of NumPy and SciPy

2011-10-04 Thread Jason Grout
p through University of Washington, and UW (IIRC) handles all of these details. I think it has worked out well (though, of course, William is the one to ask). Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman

Re: [Numpy-discussion] dtype repr change?

2011-07-29 Thread Jason Grout
re unit tests, but the requirement right now is only for doctests. Jason -- Jason Grout ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] NEPaNEP lessons - was: alterNEP

2011-07-02 Thread Jason Grout
lear communication. I see that as a very responsible thing to do, given the intensity of some of the feelings in this discussion. Thanks, Jason -- Jason Grout ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] missing data discussion round 2

2011-06-28 Thread Jason Grout
here, but we're just ignoring it. Of course, that goes against common convention, but it might be easier to explain. Thanks, Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Zero row in SVD's unitary matrix on some Mac's

2011-04-28 Thread Jason Grout
On 4/26/11 3:18 PM, Jason Grout wrote: > On 4/26/11 11:49 AM, Pauli Virtanen wrote: >> But apparently either there's a bug, or the LAPACK man page needs to >> be understood as you say. > > I've posted a question to the Lapack forum: > > http://icl.cs.utk.edu/

Re: [Numpy-discussion] Zero row in SVD's unitary matrix on some Mac's

2011-04-26 Thread Jason Grout
On 4/26/11 3:29 PM, Pauli Virtanen wrote: > On Tue, 26 Apr 2011 14:52:52 -0500, Jason Grout wrote: > [clip] >> The updated rwork calculation makes no difference with a 3x4 matrix >> (both the old calculation and the new calculation give 66 in the 3x4 >> case), so I don&#

Re: [Numpy-discussion] Zero row in SVD's unitary matrix on some Mac's

2011-04-26 Thread Jason Grout
On 4/26/11 11:49 AM, Pauli Virtanen wrote: > But apparently either there's a bug, or the LAPACK man page needs to > be understood as you say. I've posted a question to the Lapack forum: http://icl.cs.utk.edu/lapack-forum/viewtopic.php?f=2&t=

Re: [Numpy-discussion] Zero row in SVD's unitary matrix on some Mac's

2011-04-26 Thread Jason Grout
On 4/26/11 11:49 AM, Pauli Virtanen wrote: > Tue, 26 Apr 2011 11:36:19 -0500, Jason Grout wrote: > [clip] >> Okay, just one more data point. Our people that are seeing the problem >> with numpy returning a non-unitary V also see a non-unitary V being >> returned by the te

Re: [Numpy-discussion] Zero row in SVD's unitary matrix on some Mac's

2011-04-26 Thread Jason Grout
On 4/26/11 11:22 AM, Jason Grout wrote: > On 4/26/11 11:12 AM, Jason Grout wrote: >> On 4/26/11 11:07 AM, Jason Grout wrote: >>> And indeed, I get a 0 row as the last row of the V**H matrix >> >> I just double-checked things one last time and saw that I actual

Re: [Numpy-discussion] Zero row in SVD's unitary matrix on some Mac's

2011-04-26 Thread Jason Grout
On 4/26/11 11:12 AM, Jason Grout wrote: > On 4/26/11 11:07 AM, Jason Grout wrote: >> And indeed, I get a 0 row as the last row of the V**H matrix > > I just double-checked things one last time and saw that I actually > hadn't changed the first argument of zgesdd to &q

Re: [Numpy-discussion] Zero row in SVD's unitary matrix on some Mac's

2011-04-26 Thread Jason Grout
On 4/26/11 11:07 AM, Jason Grout wrote: > And indeed, I get a 0 row as the last row of the V**H matrix I just double-checked things one last time and saw that I actually hadn't changed the first argument of zgesdd to "A" in the program that I actually ran. So with this chang

Re: [Numpy-discussion] Zero row in SVD's unitary matrix on some Mac's

2011-04-26 Thread Jason Grout
On 4/25/11 12:57 PM, Pauli Virtanen wrote: > The Numpy routine is a very thin wrapper of LAPACK's ZGESDD, and probably > cannot have any bugs of this kind, As noted in my other message, I've been digging through the ZGESDD docs to understand it better. Here is the doc string for what becomes the

Re: [Numpy-discussion] Zero row in SVD's unitary matrix on some Mac's

2011-04-26 Thread Jason Grout
e. I doubt this fix will fix the problem on this thread, but it makes sense to make the change anyway. Thanks, Jason [1] https://github.com/numpy/numpy/blob/master/numpy/linalg/linalg.py#L1300 [2] http://icl.cs.utk.edu/lapack-forum/viewtopic.

Re: [Numpy-discussion] What Requires C and what is just python

2011-03-21 Thread Jason Grout
e notebook frontend). You can also launch terminal sessions with Sage, use Sage from the command line, etc. Or you can compile from source, which is I believe what the above instructions are about. Jason ___ NumPy-Discussion mailing list NumPy-Discuss

Re: [Numpy-discussion] rewriting NumPy code in C or C++ or similar

2011-03-14 Thread Jason McCampbell
he Python-independent core and might be helpful for what you are trying to do. It has not been released as a part of an official numpy release yet (under consideration as the core of 2.0) but has been released as the first beta version of NumPy and SciPy for .NET. Regards, Jason On Mon, Mar 7,

[Numpy-discussion] numpy.linalg.svd documentation

2011-01-29 Thread Jason Grout
ct. Maybe even better would be to add a shape option to np.diag, and then just make the first line of the svd docstring say u*np.diag(s,shape=(a.shape[0],a.shape[1]))*v Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.sc

Re: [Numpy-discussion] Refactor fork uses the ./configure, make, make install process.

2010-12-07 Thread Jason McCampbell
Dec 4, 2010 at 1:45 PM, Pauli Virtanen wrote: > >> On Sat, 04 Dec 2010 14:24:49 -0600, Ilan Schnell wrote: >> > I'm not sure how reasonable it would be to move only libndarray into the >> > master, because I've been working on EPD for the last couple of week. >

Re: [Numpy-discussion] Merging the refactor.

2010-11-12 Thread Jason McCampbell
hould be able to switch to using this repository now. Thanks, Jason On Fri, Nov 12, 2010 at 3:31 PM, Pauli Virtanen wrote: > On Fri, 12 Nov 2010 14:37:19 -0600, Jason McCampbell wrote: > >> Sure: > >> > >>https://github.com/numpy/numpy-refactor > >

Re: [Numpy-discussion] Merging the refactor.

2010-11-12 Thread Jason McCampbell
refactor branch. I'm open either way, just wanted to throw this out there. Jason > > -- > Pauli Virtanen > > > ___ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > http://mail.scipy.org/mailman/listinf

Re: [Numpy-discussion] Merging the refactor.

2010-11-11 Thread Jason McCampbell
Hi Chuck, Pauli, This is indeed a good time to bring this up as we are in the process fixing Python 3 issues and then merging changes from the master tree in preparation for being able to consider merging the work. More specific comments inline below. Regards, Jason On Thu, Nov 11, 2010 at 3

Re: [Numpy-discussion] Development workflow

2010-10-13 Thread Jason Grout
e line/hunk, or clicking on the icon next to the file), and double-check that everything is the way I want it. I can also check a box to amend the last commit (and see exactly what that last commit was). Thanks, Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] Github migration?

2010-09-02 Thread Jason McCampbell
On Thu, Sep 2, 2010 at 10:25 AM, Charles R Harris wrote: > > > On Thu, Sep 2, 2010 at 8:51 AM, Jason McCampbell < > jmccampb...@enthought.com> wrote: > >> >> >> On Wed, Sep 1, 2010 at 9:07 PM, Charles R Harris < >> charlesr.har...@gmail.com>

Re: [Numpy-discussion] Github migration?

2010-09-02 Thread Jason McCampbell
On Wed, Sep 1, 2010 at 9:07 PM, Charles R Harris wrote: > > Hi Jason, > > On Tue, Aug 31, 2010 at 2:56 PM, Jason McCampbell < > jmccampb...@enthought.com> wrote: > >> Hi Chuck (and anyone else interested), >> >> I updated the refactoring page on the Nu

Re: [Numpy-discussion] Github migration?

2010-09-02 Thread Jason McCampbell
On Wed, Sep 1, 2010 at 10:46 AM, Charles R Harris wrote: > > > On Tue, Aug 31, 2010 at 2:56 PM, Jason McCampbell < > jmccampb...@enthought.com> wrote: > >> Hi Chuck (and anyone else interested), >> >> I updated the refactoring page on the NumPy developer wi

Re: [Numpy-discussion] Github migration?

2010-08-31 Thread Jason McCampbell
opics that needs to be filled in. Regards, Jason On Wed, Aug 25, 2010 at 10:20 AM, Charles R Harris < charlesr.har...@gmail.com> wrote: > > > On Wed, Aug 25, 2010 at 8:19 AM, Jason McCampbell < > jmccampb...@enthought.com> wrote: > >> Chuck, >> >>

Re: [Numpy-discussion] Github migration?

2010-08-26 Thread Jason McCampbell
On Wed, Aug 25, 2010 at 10:20 AM, Charles R Harris < charlesr.har...@gmail.com> wrote: > > > On Wed, Aug 25, 2010 at 8:19 AM, Jason McCampbell < > jmccampb...@enthought.com> wrote: > >> Chuck, >> >> I will update the wiki page on the Numpy develope

Re: [Numpy-discussion] Github migration?

2010-08-25 Thread Jason McCampbell
nventions but certainly more needs to be done! I'll write it up for everyone this week but feel free to email me with other questions. Regards, Jason On Mon, Aug 23, 2010 at 9:54 PM, Charles R Harris wrote: > > > On Mon, Aug 23, 2010 at 2:30 PM, Travis Oliphant > wrote:

Re: [Numpy-discussion] additions to random: innovative names vs. algorithm specification

2010-07-30 Thread Jason Grout
On 7/29/10 1:37 PM, Robert Kern wrote: > (Book of Guido, 7:42) That's intriguing. Do you happen to have a link to it? Thanks, Jason ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] NumPy re-factoring project

2010-06-10 Thread Jason McCampbell
Hi Chuck, Good questions. Responses inline below... Jason On Thu, Jun 10, 2010 at 8:26 AM, Charles R Harris wrote: > > > On Wed, Jun 9, 2010 at 5:27 PM, Jason McCampbell < > jmccampb...@enthought.com> wrote: > >> Hi everyone, >> >> This is a follow-up

[Numpy-discussion] NumPy re-factoring project

2010-06-09 Thread Jason McCampbell
All of this, particularly the interface/core function designations, is a first analysis and in flux. The goal is to get the information out and elicit discussion and feedback from the community. Best regards, Jason Jason McCampbell Enthought, Inc. ___

Re: [Numpy-discussion] Disabling Extended Precision in NumPy (like -ffloat-store)

2010-04-25 Thread Jason Grout
com/group/comp.lang.python/browse_thread/thread/ba2b69a8fd8d45f6. The cool thing is that the numpy arrays can use these objects as naturally as other python objects. Thanks, Jason [1] http://www.sagemath.org [2] http://www.mpfr.org ___ NumPy-Dis

Re: [Numpy-discussion] opening pickled numarray data with numpy

2009-10-19 Thread Jason Rennie
MissingClass(object): pass Cheers, Jason On Mon, Oct 19, 2009 at 1:00 PM, dagmar wismeijer wrote: > Hi, > > I've been trying to open (using numpy) old pickled data files that I once > created using numarray, but I keep getting the message that there is no > module numa

Re: [Numpy-discussion] performance matrix multiplication vs. matlab

2009-06-11 Thread Jason Rennie
teresting to hear of a problem where one can't separate observed/hidden variables :) Cheers, Jason -- Jason Rennie Research Scientist, ITA Software 617-714-2645 http://www.itasoftware.com/ ___ Numpy-discussion mailing list Numpy-discussion@sci

Re: [Numpy-discussion] performance matrix multiplication vs. matlab

2009-06-08 Thread Jason Rennie
climbing algorithms (besides its present-ability and ease of implementation). Cheers, Jason -- Jason Rennie Research Scientist, ITA Software 617-714-2645 http://www.itasoftware.com/ ___ Numpy-discussion mailing list Numpy-discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

Re: [Numpy-discussion] performance matrix multiplication vs. matlab

2009-06-08 Thread Jason Rennie
dered how much the Gaussianity assumption is hurting you? Jason On Mon, Jun 8, 2009 at 1:17 AM, David Cournapeau < da...@ar.media.kyoto-u.ac.jp> wrote: > Gael Varoquaux wrote: > > I am using the heuristic exposed in > > http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumb

Re: [Numpy-discussion] matrix default to column vector?

2009-06-05 Thread Jason Rennie
for findability, but it should simply serve as documentation for how to do matrix stuff with nparray. Cheers, Jason -- Jason Rennie Research Scientist, ITA Software 617-714-2645 http://www.itasoftware.com/ ___ Numpy-discussion mailing list N

Re: [Numpy-discussion] performance matrix multiplication vs. matlab

2009-06-05 Thread Jason Rennie
rally shouldn't be installing packages by hand as it sounds like you are doing. This post suggests that the latest version of Ubuntu is up-to-date wrt ATLAS: http://www.mail-archive.com/numpy-discussion@scipy.org/msg13102.html Jason On Fri, Jun 5, 2009 at 5:44 AM, David Paul Reichert &

Re: [Numpy-discussion] matrix default to column vector?

2009-06-04 Thread Jason Rennie
Thanks for the responses. I did not realize that dot() would do matrix multiplication which was the main reason I was looking for a matrix-like class. Like you and Tom suggested, I think it's best to stick to arrays. Cheers, Jason On Sun, May 24, 2009 at 6:45 PM, David Warde-Farley

[Numpy-discussion] matrix default to column vector?

2009-05-21 Thread Jason Rennie
vector? Thanks, Jason -- Jason Rennie Research Scientist, ITA Software http://www.itasoftware.com/ ___ Numpy-discussion mailing list Numpy-discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

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