Re: [Numpy-discussion] PCA - Principal Component Analysis

I've done a version of nipals algorithm in python (i'ts a translation of a matlab routine in brereton made by Riccardo Leardi). far from perfect (my transport i mean) but working (I've tested on my datasets and it runned ok) you can download it at www.chemometrics.it. Hope it will help and if

[Numpy-discussion] signal processing chapter for book

first of all sorry for cross posting As I wrote some time ago we are trying to write a book proposal about the use of python/scipy/numpy in chemometrics and analytical chemistry. Since now I've received positive answer from eight authors and the only missing chapter is one about the use of

[Numpy-discussion] call for chapeters in a book about freeware/opensource in chemometrics

Giorgio Luciano Ph.D. Di.C.T.F.A. Dipartimento di Chimica e Tecnologie Farmaceutiche e Alimentari Via Brigata Salerno (ponte) - 16147 Genova (GE) - Italy email [EMAIL PROTECTED] www.chemometrics.it -==- ___ Numpy-discussion mailing

Re: [Numpy-discussion] very large matrices.

If you are using it for making a PCA, why dont' you try to use nipals algorithm ? (probably a silly question , just wanted to give help :) Giorgio ___ Numpy-discussion mailing list Numpy-discussion@scipy.org

Re: [Numpy-discussion] matlab vs. python question

All good points stated here. Unfortunatly I'm not able to contribute, and as stated also in other thread, scipy/python was not born for being a clone of matlab (uhmm well probably matplotlib at first was). What would be the killer distro for matlab ? An updated distro with

Re: [Numpy-discussion] matlab vs. python question

Thanks Gael, I dont' use Ipython, but Ide in interactive mode and everything is fine (changed matplotlibrc and then se switch on in configuration). I just meant hat if you dont' know it or dont' pay attention to start with the correct shortcut etc. etc. you dont' have an immediate interactive

Re: [Numpy-discussion] question about standalone small software and teaching

Thanks for the reply I will sure try to use it and so some small software. Giorgio ___ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion

[Numpy-discussion] question about standalone small software and teaching

Hello Dear All, I just have a question for all that uses python/numpy/scipy/matplotlib for making science. I use with no problem in my computer python+numpy+scipy+matplotlib and I'm very satisfied with them. I was a matlab user. I still not have unearthed the power ot python but I'm happy to

[Numpy-discussion] odd installation problem of numpy/matplotlib

Sorry if the message will arrive in duplicate I had some problem with posting in the mailing list I've installed in my machine in the following order python 2.5 numpy 1.01 matplot lib 0.87 scipy 0.52 wxPython 2.8 with no problem I've also installed the same packages at home and in another two

[Numpy-discussion] matlab, idle, interactivity and teaching

Hello to all, I've thread that apperead some time ago on this list about matlab and teaching. I've discovered python recently and translated part of the routine I use in python (www.chemometrics.it). Some of my collegue asked me if I could show them how to use python. For matlab user I guess

Re: [Numpy-discussion] rounding all element of an array with more than 1d

Yes it worked, sorry for bothering. the problem was theI used round with no underscore.. and so I made confusion with the two command Thank a lot !! ___ Numpy-discussion mailing list Numpy-discussion@scipy.org

[Numpy-discussion] empty data matrix (are they really empty ?)

I was converting a matlab file to my new favority scientific language Numpy :) In the old file I created a matrix on the fly. I know that Numpy and python cannot do that so I found a workaround here's the code lev2=empty((1,h)) ir=1 for j in arange(1,nstep+2):