Python is a very-high-level language. That makes it easy to write code quickly, but the program may not be as fast as a program compiled from a lower-level language. For this reason, many scientific programs are written in Fortran or C++. However, it has always been my experience that the majority of time on a project is spent in writing, modifiying, and debugging code, rather th...... [Show More]
Today’s debriefing ( download directly here or subscribe to the feed for podcast download) catches up on the debriefing items from the past few (work) days. My excuse: I was busy at the Adobe MAX judging event in San Jose last week.
Here are the items covered:
Everyone has Windows in the cloud: Amazon , Microsoft , and 3Tera . As I’ve said before, the sho...... [Show More]
Today’s debriefing catches up on the debriefing items from the past few (work) days. My excuse: I was busy at the Adobe MAX judging event in San Jose last week.
Here are the items covered:
Everyone has Windows in the cloud: Amazon , Microsoft , and 3Tera . As I’ve said before, the short-term deployments to look for are Exchange and SharePoint instance.
Spring S...... [Show More]
A new beta 2 of the Enthought Python Distribution has been released . It includes updates to the latest versions of wxPython (2.8.7.1), VTK (5.2), IPython (0.9.1), matplotlib (0.98.3), ETS (3.0.2) and some other stuff. It looks like NumPy is still at 1.1.1 though - I guess NumPy 1.2 will appear in the final EPD release as it is almost ready to roll . S...... [Show More]
To date, Biopython releases have relied on the original numerical python library, Numeric (used in python with “import Numeric 221;). In the next release we will at last be moving to its successor, NumPy (used in python with “import numpy”).
This transition is already under way in the Biopython source code repository. For further details, or to voice...... [Show More]
...help us write
better documentation for Numpy by joining it! Instructions on how to
join and what to do can be found on the scipy.org website....... [Show More]
I provide a simple Python module for training a C-SVM at our public subversion repository . I had to write an own wrapper of libsvm s C-SVM for some reasons:
There are SVM implementations for Python, but I wanted a lightweight solution which plays well with numpy instead of a full framework such as Orange .
There is a libsvm wrapper in scipy .sandbox, but I did not succeed in building ...... [Show More]
The emergence of Matlab during the last decade of the 20th century highly changed the way we develop, implement and test numerical algorithms:
In the old days we used C, sometimes Fortran or C++. We spent a lot of time in writing low-level functions and debugging memory leaks. Matlab helped us a lot.
Debugging numerical algorithms is hard, because dumping a 100 times 100 matrix will not...... [Show More]
matplotlib is a:
python 2D plotting library which produces publication quality figures in a variety of hardcopy formats and interactive environments across platforms. matplotlib can be used in python scripts, the python and ipython shell (ala matlab or mathematica), web application servers, and six graphical user interface toolkits.
The plots produced by maplotlib really are very p...... [Show More]
Searching the web for a python based solver for a non negative least squares problem I found some Fortran code from www.netlib.org only. F2PY is a great tool but due to compiler issues it did not work in my case. So I used ctypes , which was easy because numpy has a sub module ctypeslib which provides some nice convenience routines for using ctypes together with numpy .
I tried t...... [Show More]
links for 20080714 Post Source: feeds.feedburner.com Posted: Jul 14 2008 06:31:28
PLoS business
“PLoS is simply going through the natural progression of a startup. It has solved the first puzzle: making something people want, which is open access journals.”
(tags: PLoS open-access publishing business-culture business-model academia cultural-norms )
DARE WEBPAGE
Somebody was asking about this in a conversation. Ed?
(tags: DARE...... [Show More]
Olá!
No 4º periodo do meu curso de Engenharia, cursei a disciplina “Métodos Numéricos Computacio nais” ;, que aborda os diversos métodos computacionais usados para solucionar problemas matemáticos em geral.
Meu trabalho consistia em implementar um algoritmo em qualquer linguagem de programação que resolvesse sistemas lineares pelo método iterativo de Jacobi.
Não entrare...... [Show More]
My manifold learning code was for some time a Technology Preview in the scikit learn. Now I can say that it is available (BSD license) and there should not be any obvious bug left..
I’ve written a small tutorial . It is not an usual tutorial (there is a user tutorial and then what developers should know to enhance it), and some results of the techniques are exposed in my b...... [Show More]
some scipy stuff Post Source: www.caswenson.com Posted: Jun 06 2008 00:57:00
It’s been quiet here lately. I’ve had a lot of projects going on that occupy most of my time in the evenings and on weekends.
One of these is a new blog I will be writing for, so expect news of that in the next few days. I’ve been putting together a chapter for a book, working on my dissertation, working on new web sites, and a whole slew of other activities.
Once some of t...... [Show More]
Fedora 9 was released last week. Our lab’s servers and workstations all run varying versions of Fedora or CentOS , the RHEL-clone server distribution. In preparation for the release of F9, we had decided to replace some aging 32-bit workstations. The new workstations all have Intel Q9300 CPUs, four gigs of RAM, NVidia 9600GT video cards, and a pair of 250GB SATA drives. The 250G...... [Show More]
python Post Source: eli.thegreenplace.net Posted: May 14 2008 16:36:36
As I wrote extensively earlier, I’m not fully satisfied with either Perl or Ruby for my main programming language of choice. I always knew there is the third option, Python , but for some reason never paid any serious attention to it.
Well, this is about to change - I’ve decided to give Python a try. What gave me the push was two things:
I was playing with wxWidgets earlier thi...... [Show More]
Vincent Noel :
[ SAGE ] is basically a wrapper around Python with tons of scientific packages added, all nicely pre-compiled into tasty binaries just for you by very nice people (which involves tons of work, not as simple as it sounds). These goodies come in gzipped tarballs that you dump into your $HOME. You can then launch the sage program, which handles regular Python just fine and in...... [Show More]
Big news since my last Morning Coffee post was the announcement of Live
Mesh . I’ve been running it for about a month, and I’m really digging it. Make
sure you check out the team blog and
watch the developer tour
video (be on the lookout for IPy about half way thru the video)
ALT.NET
I had a great time @ the ALT.NET open space conference
last weeke...... [Show More]
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