June 2008

Hack-at-it 2008

June 27, 2008 | 0 Comments

The 2008 Hack-at-it was held June 22-23, just before Data Vis VI, in Bremen Germany.The main topics for the meeting were: Release of 2.1.7 Continued design of GGobi 3 [Read more...]

maps of Poland in R

June 23, 2008 | 0 Comments

Bogdan Taranta (website in Polish) is developing a set of functions for drawing administrative maps of Poland. I wrote similar functionality for myself already some time ago, but only for voivodships, i.e. top-level administrative units, and also in a rather low resolution. Bogdan’s contribution seems to contain all ...
[Read more...]

Smart programming saves computing times

June 21, 2008 | 0 Comments

Recently, I tried to learn C language so that I can write a C addon for some R rountines to redress the speed issue in R. In my last post here, I have documented how a simple trick can speed up R. Nonetheless, I had an example which shows that ... [Read more...]

One R tip a day

June 21, 2008 | 0 Comments

I just encountered this website http://onertipaday.blogspot.com/: One R tip per day. Very nice collection of R tips.
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Speed up R! Make R Run Faster!

June 16, 2008 | 0 Comments

This is another example of why defaults matter a lot. I got an email of Evan Cooch forward by Matt, saying that there exists a trick to speed up R matrix caculation. He found that if we replace the default Rblas.dll in R with the proper one. It can ... [Read more...]

Unmessing my pdfs.

June 1, 2008 | 0 Comments

If you google on ‘papers’, the first hit you’ll get is http://mekentosj.com/papers/: linking to mekentosj’ Papers program. The fact that it is the first hit on google shows that it is a popular program -- or at least that a lot ... [Read more...]

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