Mailman 3 September 2003 - SciPy-User

powm for scipy
by Nils Wagner Sept. 16, 2003

Sept. 16, 2003

Dear experts, I wonder, if powm will become a part of scipy in the near future. Nils

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scipy website
by Arnd Baecker Sept. 16, 2003

Sept. 16, 2003

Hi, I encountered a few glitches with the scipy website: - At the end of http://www.scipy.org/site_content/tutorials there is under "Other Sources of Information" the link to the Wiki, pointing to http://www.scipy.org/site_content/tutorials/discuss which does not seem to exist (Site Error). Is the wiki (in principle) usable already now? - Clicking on the Portal Members homepages one gets: "Redirection limit for this URL exceeded. Unable to load the requested page" (eg.: http://www.scipy.org/Members/dmorrill) - The Search function for the mailing lists works, however the resulting links appear to be broken: Eg.: http://66.106.86.196/pipermail/scipy-user/2002-March/000218.html (Changing this by hand to http://www.scipy.org/site_content/mailman?fn=scipy-user/2002-March/000218.h… shows the expected page) BTW: I think that the Wiki is too hidden - a link should go on the main page once it is in operation and has contents! Arnd

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Spectral projector
by Nils Wagner Sept. 16, 2003

Sept. 16, 2003

Dear experts, how can I compute the spectral projector associated with \gamma, which is defined by P_\gamma = \frac{1}{2\pi i} \oint\limits_\gamma (\lambda I - A)^{-1} d\lambda i = \sqrt{-1} \gamma : contour I : identity matrix A : complex matrix of order n with scipy ? Any suggestion ? A small example would be appreciated. Thanks in advance, Nils

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San Diego Python User's Group (SANDPYT)
by ChuckEsterbrook＠yahoo.com Sept. 16, 2003

Sept. 16, 2003

I saw some great presentations from San Diego Python users at SciPy 2003. We'd love to have you join us at SANDPYT: We have a meeting this Thur. Doors open at 6:30pm and presentations start at 7:00pm. We usually go til 9 or so. Details here: http://www.sandpyt.org/ -Chuck -- http://ChuckEsterbrook.com/

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Webware for Python
by ChuckEsterbrook＠yahoo.com Sept. 16, 2003

Sept. 16, 2003

Several people at the SciPy 2003 conference asked about Webware for Python and in particular, for the URL. Here it is: http://Webware.sf.net/ If you're wondering what Webware is....click the link and find out! :-) If you have questions, please put them through the webware-discuss(a)lists.sf.net mailing list. Thanks, -Chuck -- http://ChuckEsterbrook.com/

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More progress installing scipy on Mac OSX / Fink
by Gary Pajer Sept. 15, 2003

Sept. 15, 2003

Andrea, Thanks for your patience, as I am new to the ways of The Mac and The Fink. Just knowing that it worked for someone is a great help. I was indeed *not* installing scipy-py22. I got much farther when I fixed that. Now, after a long compile, it quits with the error stream shown below. I also include, below, the responses to your suggested queries. I've probably munged up my installation. Since you've had good results, I'm tempted to rm -r /sw and start over. Any idea how to fix this? Should I start with a clean slate? thanks, gary ------------------------------------------------------------------------ - Here's the responses I get to your suggested queries: % fink list numeric Information about 1285 packages read in 4 seconds. gnumeric 1.0.13-1 Spreadsheet program for gnome, reads many... numeric 22.0-1 Multidim'l numerical arrays for Python, u... numeric-atlas 22.0-1 Multidim'l numerical arrays for Python, u... i numeric-py22 23.0-1 Multidim'l numerical arrays for Python, u... % fink list scipy Information about 1285 packages read in 1 seconds. scipy 20021007-1 Scientific tools for Python scipy-py22 20030415-1 Scientific tools for Python scipy-py23 20030415-2 Scientific tools for Python % fink list atlas Information about 1285 packages read in 1 seconds. i atlas 3.4.1-2 Portably optimal linear algebra software numeric-atlas 22.0-1 Multidim'l numerical arrays for Python, u... scilab-atlas 2.7-1 Software package for numerical computations ------------------------------------------------------------------------ -- scipy compile error: ld: Undefined symbols: _CloseResFile _CopyPascalStringToC _FMCreateFontFamilyInstanceIterator _FMCreateFontFamilyIterator _FMDisposeFontFamilyInstanceIterator _FMDisposeFontFamilyIterator _FMGetFontContainer _FMGetFontFamilyName _FMGetNextFontFamily _FMGetNextFontFamilyInstance _FSClose _FSGetCatalogInfo _FSMakeFSSpec _FSOpenResourceFile _FSPathMakeRef _FSpGetFInfo _FSpMakeFSRef _FSpOpenRF _FSpOpenResFile _Get1IndResource _Get1Resource _GetEOF _GetHandleSize _GetResInfo _GetResource _HLock _HUnlock _HomeResFile _PBGetFCBInfoSync _ReleaseResource _ResError _UseResFile error: command 'g++' failed with exit status 1 ### execution of python2.2 failed, exit code 1 Failed: compiling scipy-py22-20030415-1 failed ------------------------------------------------------------------------ I think the Fink list it'd be a better place to ask for. I'm sure you can find much more help there. By the way I use Fink and I installed scipy last week without a problem. In order to solve your problem I need more information about your configuration. What's your output for: % fink list numeric % fink list scipy % fink list atlas I suspect you are trying to install scipy (old realese) instead of scipy-py22 (new one). Cheers, Andrea. On Friday, Sep 12, 2003, at 02:16 Europe/Rome, Gary Pajer wrote: > I'm trying to install scipy on OSX using the Fink installer. > As noted earlier, I had to find and manually download pdflib-4.0.3 > because > pdflib.com is delivering 5.x.x. > [snip] [...]

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How well does SciPy work with Python 2.3
by Tony Cappellini Sept. 15, 2003

Sept. 15, 2003

I didn't see any posts about compatibility with 2.3, nor do I see any release info, so I need to ask.

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ipython-0.5 and returned tuples
by Jeffery D. Collins Sept. 12, 2003

Sept. 12, 2003

f(x) returns a 2-tuple. This works fine under 0.4, but 0.5 reports the following. In [23]: sum,diff = f(1) ------------------------------------------------------------ File "<console>", line 1 sum(,diff = f(1)) ^ SyntaxError: invalid syntax -------> sum(,diff = f(1)) -- Jeffery Collins (http://www.boulder.net/~jcollins)

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ANN: NAGpy (python NAG interface)
by Jeffrey S Whitaker Sept. 10, 2003

Sept. 10, 2003

Thought scipy users who have the commercial NAG math library might be interested in this .. NAGpy - python NAG library interface A Python interface to the NAG Fortran 77 library (http://www.nag.com/numeric/Fortran_Libraries.asp). The python signatures are designed to be as similar as possible to the NAG/Matlab Foundation Toolbox (http://www.nag.com/nagware/mt/doc/contents.asp). Requires: 1) Numeric (http://sf.net/projects/numpy). 2) Pyfort (http://pyfortran.sf.net - version 8.2 or above). 3) NAG f77 double precision lib (and a fortran compiler Pyfort knows about). 4) optik module (http://optik.sf.net) - only needed if using python<2.3. Home page: http://www.cdc.noaa.gov/~jsw/python/nagpy Source code: ftp://ftp.cdc.noaa.gov/Public/jsw/nagpy.tar.gz. Available functions (so far). I'm slowly adding more from chapter G. If need a specific function, email me and I'll put it on the TODO list. Lower-case names are functions, capitalized names are classes. g01eaf: returns a probability associated with a given deviate from a standard normal distribution. g01eff: returns returns the lower or upper tail probability of the gamma distribution, with parameters alpha and beta. g01faf: returns a deviate associated with a given probability from a standard normal distribution. g01fff: returns the deviate associated with the given lower tail probability of the gamma distribution. g02bsf: Kendall/Spearman non-parametric rank correlation coefficients, with treatment of missing values. g02daf: fit a general (multiple) linear regression model. g02dgf: update a general (multiple) linear regression model with a a new dependent variable after a call to g02daf. g02dnf: Gives the estimate of an estimable function along with its standard error. G02EEF: Performs a forward selection procedure to find "best" linear regression model - implemented as a class. g02gaf: fit a generalized linear model with gaussian errors. g02gbf: fit a generalized linear model with binomial errors. g02gcf: fit a generalized linear model with poisson errors. g02gdf: fit a generalized linear model with gamma errors. g03aaf: principal component analysis. g03acf: canonical variate analysis. g03adf: canonical correlation analysis. g03baf: Orthogonal rotations for loading matrix, generalized orthomax criterion. g03eff: K-means cluster analysis. Feedback: Jeff Whitaker <Jeffrey.S.Whitaker(a)noaa.gov> -- Jeffrey S. Whitaker Phone : (303)497-6313 NOAA/OAR/CDC R/CDC1 FAX : (303)497-6449 325 Broadway Web : http://www.cdc.noaa.gov/~jsw Boulder, CO, USA 80305-3328 Office: Skaggs Research Cntr 1D-124

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Hankel, Toeplitz why not Vandermonde
by Nils Wagner Sept. 10, 2003

Sept. 10, 2003

Hi all, I found Hankel and Toeplitz matrices in scipy - why not Vandermonde matrices ? Nils

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