Monthly Archives: June 2008

GGobi in Wikipedia

June 27, 2008
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GGobi now has an entry in Wikipedia. Feel free to edit it!

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GGobi in Wikipedia

June 27, 2008
By

GGobi now has an entry in Wikipedia. Feel free to edit it!

Read more »

Hack-at-it 2008

June 27, 2008
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Hack-at-it 2008

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

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Hack-at-it 2008

June 27, 2008
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Hack-at-it 2008

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
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maps of Poland in R

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 levels, at high resolution, and including the

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Smart programming saves computing times

June 21, 2008
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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 smart...

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Smart programming saves computing times

June 21, 2008
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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 smart...

Read more »

One R tip a day

June 21, 2008
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One R tip a day

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
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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 b...

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Speed up R! Make R Run Faster!

June 16, 2008
By

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 b...

Read more »