Re: [Numpy-discussion] [SciPy-dev] Deprecate chararray [was Plea for help]

2009-08-20 Thread Ralf Gommers
On Thu, Aug 20, 2009 at 1:32 PM, Christopher Hanley wrote: > Also, I do not know how many people use this particular feature. > However I would point out that many people who use numpy are not also > on the mailing lists. Most of the STScI do not follow the numpy > list. I serve as our point of

Re: [Numpy-discussion] itemsize() doesn't work

2009-08-20 Thread David Goldsmith
Hi, Stefan. Is this editable through the Wiki? I went to the Docstrings page and searched for "numpydoc" and "tutorial" and got no hits. DG --- On Thu, 8/20/09, Stéfan van der Walt wrote: > From: Stéfan van der Walt > Subject: Re: [Numpy-discussion] itemsize() doesn't work > To: "Discussion

Re: [Numpy-discussion] nosetests and permissions

2009-08-20 Thread Chris Colbert
tarball from sourceforge. On Thu, Aug 20, 2009 at 6:33 PM, David Cournapeau wrote: > On Thu, Aug 20, 2009 at 2:06 PM, Chris Colbert wrote: >> the issue is that the files are executable. I have no idea why they >> are set that way either. This is numpy 1.3.0 built from source. > > Which sources are

Re: [Numpy-discussion] itemsize() doesn't work

2009-08-20 Thread David Goldsmith
Thanks for the bug report! DG --- On Thu, 8/20/09, Dr. Phillip M. Feldman wrote: > From: Dr. Phillip M. Feldman > Subject: [Numpy-discussion] itemsize() doesn't work > To: numpy-discussion@scipy.org > Date: Thursday, August 20, 2009, 5:46 PM > > I've been reading the online NumPy tutorial at

Re: [Numpy-discussion] how to find array indices at which a condition is satisfied?

2009-08-20 Thread Ernest Adrogué
20/08/09 @ 18:00 (-0700), thus spake Dr. Phillip M. Feldman: > I have a 1-D array and would like to generate a list of indices for which a > given condition is satisfied. What is the cleanest way to do this? you can do something like this: numpy.arange(len(x))[x > 5] it'll give you the indices

Re: [Numpy-discussion] how to find array indices at which a condition is satisfied?

2009-08-20 Thread Stéfan van der Walt
2009/8/20 Dr. Phillip M. Feldman : > > I have a 1-D array and would like to generate a list of indices for which a > given condition is satisfied.  What is the cleanest way to do this? np.where(x > 0) Stéfan ___ NumPy-Discussion mailing list NumPy-Discu

Re: [Numpy-discussion] how to find array indices at which a condition is satisfied?

2009-08-20 Thread Robert Kern
On Thu, Aug 20, 2009 at 18:00, Dr. Phillip M. Feldman wrote: > > I have a 1-D array and would like to generate a list of indices for which a > given condition is satisfied.  What is the cleanest way to do this? numpy.nonzero(condition)[0] -- Robert Kern "I have come to believe that the whole wo

Re: [Numpy-discussion] itemsize() doesn't work

2009-08-20 Thread josef . pktd
2009/8/20 Stéfan van der Walt : > 2009/8/20 Dr. Phillip M. Feldman : >> >> I've been reading the online NumPy tutorial at the following URL: >> >> http://numpy.scipy.org/numpydoc/numpy-10.html >> >> When I try the following example, I get an error message: >> >> In [1]: a=arange(10) >> In [2]: a.it

[Numpy-discussion] how to find array indices at which a condition is satisfied?

2009-08-20 Thread Dr. Phillip M. Feldman
I have a 1-D array and would like to generate a list of indices for which a given condition is satisfied. What is the cleanest way to do this? -- View this message in context: http://www.nabble.com/how-to-find-array-indices-at-which-a-condition-is-satisfied--tp25072656p25072656.html Sent from t

Re: [Numpy-discussion] itemsize() doesn't work

2009-08-20 Thread Stéfan van der Walt
2009/8/20 Dr. Phillip M. Feldman : > > I've been reading the online NumPy tutorial at the following URL: > > http://numpy.scipy.org/numpydoc/numpy-10.html > > When I try the following example, I get an error message: > > In [1]: a=arange(10) > In [2]: a.itemsize() This is a mistake, and should be

[Numpy-discussion] itemsize() doesn't work

2009-08-20 Thread Dr. Phillip M. Feldman
I've been reading the online NumPy tutorial at the following URL: http://numpy.scipy.org/numpydoc/numpy-10.html When I try the following example, I get an error message: In [1]: a=arange(10) In [2]: a.itemsize() --- TypeErr

Re: [Numpy-discussion] Removing scipy.stsci was [Re: [SciPy-dev] Deprecate chararray [was Plea for help]]

2009-08-20 Thread Stéfan van der Walt
2009/8/20 Christopher Hanley : > Will the Image Processing Scikit be dedicated to working with a single > image or stacks of images? Thanks for the reminder -- I have to add ImageCollection to the set of features. Fernando started working on something similar in 2006, and I've implemented a cache

Re: [Numpy-discussion] Deprecate chararray [was Plea for help]

2009-08-20 Thread David Cournapeau
On Thu, Aug 20, 2009 at 5:06 PM, Travis Oliphant wrote: > > On Aug 20, 2009, at 2:04 PM, David Cournapeau wrote: > >> On Thu, Aug 20, 2009 at 10:32 AM, Christopher >> Hanley wrote: >> >>> >>> Another concern is that we told people coming from numarray to use >>> this module.  It is my opinion that

Re: [Numpy-discussion] Deprecate chararray [was Plea for help]

2009-08-20 Thread Travis Oliphant
On Aug 20, 2009, at 2:04 PM, David Cournapeau wrote: > On Thu, Aug 20, 2009 at 10:32 AM, Christopher > Hanley wrote: > >> >> Another concern is that we told people coming from numarray to use >> this module. It is my opinion that at this point in the numpy >> release >> cycle that an API cha

Re: [Numpy-discussion] Removing scipy.stsci was [Re: [SciPy-dev] Deprecate chararray [was Plea for help]]

2009-08-20 Thread James Turner
Hi Chris & Stefan, I will be around for most of the weekend (as I believe will Perry). I'm not sure I'll be able to contribute a lot to coding, but if there's any stuff you want to co-ordinate between STScI and Stefan's scikit, let me know if I can help. That's probably about the most useful thing

Re: [Numpy-discussion] Removing scipy.stsci was [Re: [SciPy-dev] Deprecate chararray [was Plea for help]]

2009-08-20 Thread Christopher Hanley
Hi Stefan, Never mind. I just found the Sprint website and read the description. I'm sorry I hadn't found this sooner. I would have made plans to stay and help. My apologizes. Sorry, Chris -- Christopher Hanley Senior Systems Software Engineer Space Telescope Science Institute 3700 San

Re: [Numpy-discussion] Removing scipy.stsci was [Re: [SciPy-dev] Deprecate chararray [was Plea for help]]

2009-08-20 Thread Christopher Hanley
On Aug 20, 2009, at 7:48 PM, Stéfan van der Walt wrote: Hi Stefan, > We'll be spriting on an Image Processing Scikit this weekend. If you > have any functions you'd like to include, let me know. > > Regards > Stéfan Will the Image Processing Scikit be dedicated to working with a single image

Re: [Numpy-discussion] Removing scipy.stsci was [Re: [SciPy-dev] Deprecate chararray [was Plea for help]]

2009-08-20 Thread Stéfan van der Walt
Hi Chris 2009/8/20 Christopher Hanley : > That should clean some code up.  If someday a generic image processing > library is added to scipy we can consider incorporating our modules > back into scipy.  Until that time I would rather remove the > redundancy.  It also help scipy's maintainability a

[Numpy-discussion] Removing scipy.stsci was [Re: [SciPy-dev] Deprecate chararray [was Plea for help]]

2009-08-20 Thread Christopher Hanley
I agree with David's comments. In that theme I have removed scipy.stsci from scipy. Users get it directly from us at STScI via STSCI_PYTHON. It doesn't have any documentation in the doc system. It isn't by default in the scipy namespace. And as a recent bug report indicates they can't

Re: [Numpy-discussion] nosetests and permissions

2009-08-20 Thread David Cournapeau
On Thu, Aug 20, 2009 at 2:06 PM, Chris Colbert wrote: > the issue is that the files are executable. I have no idea why they > are set that way either. This is numpy 1.3.0 built from source. Which sources are you using ? The tarball on sourceforge, from svn, etc... ? cheers, David ___

Re: [Numpy-discussion] nosetests and permissions

2009-08-20 Thread Robert Kern
On Thu, Aug 20, 2009 at 14:13, Chris Colbert wrote: > nope. > > I build Atlas, and modified site.cfg to find those libs in > /usr/local/lib/atlas/ > > then i did: > > python setup.py build > sudo python setup.py install > > that's it. Huh. I don't know. Are the source files executable? -- Rober

Re: [Numpy-discussion] nosetests and permissions

2009-08-20 Thread Chris Colbert
nope. I build Atlas, and modified site.cfg to find those libs in /usr/local/lib/atlas/ then i did: python setup.py build sudo python setup.py install that's it. On Thu, Aug 20, 2009 at 5:09 PM, Robert Kern wrote: > On Thu, Aug 20, 2009 at 14:06, Chris Colbert wrote: >> the issue is that the fi

Re: [Numpy-discussion] nosetests and permissions

2009-08-20 Thread Robert Kern
On Thu, Aug 20, 2009 at 14:06, Chris Colbert wrote: > the issue is that the files are executable. I have no idea why they > are set that way either. This is numpy 1.3.0 built from source. Are you sure that those are exactly the commands that you executed? You didn't invoke setuptools in any way?

Re: [Numpy-discussion] nosetests and permissions

2009-08-20 Thread Chris Colbert
this happens with scipy too... On Thu, Aug 20, 2009 at 5:06 PM, Chris Colbert wrote: > the issue is that the files are executable. I have no idea why they > are set that way either. This is numpy 1.3.0 built from source. > > the default install location for setup.py install is the local > dist-pac

Re: [Numpy-discussion] nosetests and permissions

2009-08-20 Thread Chris Colbert
the issue is that the files are executable. I have no idea why they are set that way either. This is numpy 1.3.0 built from source. the default install location for setup.py install is the local dist-packages. So that's where it is. On Thu, Aug 20, 2009 at 5:03 PM, Keith Goodman wrote: > On Thu

Re: [Numpy-discussion] nosetests and permissions

2009-08-20 Thread Keith Goodman
On Thu, Aug 20, 2009 at 1:52 PM, Chris Colbert wrote: > when I build numpy from source via: > > python setup.py build > sudo python setup.py install > > > the nosetests fail because of permissions: > > In [5]: np.test() > Running unit tests for numpy > NumPy version 1.3.0 > NumPy is installed in /u

Re: [Numpy-discussion] nosetests and permissions

2009-08-20 Thread Robert Kern
On Thu, Aug 20, 2009 at 13:52, Chris Colbert wrote: > when I build numpy from source via: > > python setup.py build > sudo python setup.py install > > > the nosetests fail because of permissions: What permissions do your files have? If they're not readable for whatever reason, you would be SOL no

[Numpy-discussion] nosetests and permissions

2009-08-20 Thread Chris Colbert
when I build numpy from source via: python setup.py build sudo python setup.py install the nosetests fail because of permissions: In [5]: np.test() Running unit tests for numpy NumPy version 1.3.0 NumPy is installed in /usr/local/lib/python2.6/dist-packages/numpy Python version 2.6.2 (release26

Re: [Numpy-discussion] [SciPy-dev] Deprecate chararray [was Plea for help]

2009-08-20 Thread David Cournapeau
On Thu, Aug 20, 2009 at 10:32 AM, Christopher Hanley wrote: > > Another concern is that we told people coming from numarray to use > this module.  It is my opinion that at this point in the numpy release > cycle that an API change needs a very strong justification.  Anecdotes > about the number of

Re: [Numpy-discussion] Deprecate chararray [was [SciPy-dev] Plea for help]

2009-08-20 Thread Christopher Hanley
Here is what I know about the chararray usage at STScI since first looking into it this morning. It is used in PyFITS and within the COS instrument calibration code. I have not heard back from the other projects yet given most of our developers are away at this time. It appears that the CO

[Numpy-discussion] Deprecate chararray [was [SciPy-dev] Plea for help]

2009-08-20 Thread David Goldsmith
--- On Thu, 8/20/09, Christopher Hanley wrote: > I'd like to respectfully request that we move any > discussion of what  > to do with the numpy.char module to the numpy list. NP, done. > I'm a little concerned about some of the assumptions that > are being  > made about the number of users of

Re: [Numpy-discussion] what to do with chararray

2009-08-20 Thread Robert Kern
On Thu, Aug 20, 2009 at 09:18, Ralf Gommers wrote: > [this discussion moved here from the SciPy list] > > On Thu, Aug 20, 2009 at 9:50 AM, Christopher Hanley > wrote: >> >> Hi, >> >> I'd like to respectfully request that we move any discussion of what >> to do with the numpy.char module to the num

[Numpy-discussion] what to do with chararray

2009-08-20 Thread Ralf Gommers
[this discussion moved here from the SciPy list] On Thu, Aug 20, 2009 at 9:50 AM, Christopher Hanley wrote: > Hi, > > I'd like to respectfully request that we move any discussion of what > to do with the numpy.char module to the numpy list. > > I'm a little concerned about some of the assumptions

[Numpy-discussion] Accelerating NumPy computations [Was: GPU Numpy]

2009-08-20 Thread Francesc Alted
El dj 20 de 08 del 2009 a les 00:37 -0700, en/na Erik Tollerud va escriure: > > NumPy arrays on the GPU memory is an easy task. But then I would have to > > write the computation in OpenCL's dialect of C99? But I'd rather program > > everything in Python if I could. Details like GPU and OpenCL shou

Re: [Numpy-discussion] Fwd: GPU Numpy

2009-08-20 Thread Erik Tollerud
I realize this topic is a bit old, but I couldn't help but add something I forgot to mention earlier... >> I mean, once the computations are moved elsewhere numpy is basically a >> convenient way to address memory. > > That is how I mostly use NumPy, though. Computations I often do in > Fortran 95