Below: two animations (same one twice, just as different speeds) I made from the highway data for the Kaggle traffic prediction competition.The data are travel times for 61 different sections of Sydney's M4 freeway, in both directions. The data comes i...
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Animation from Kaggle traffic prediction competition
Below: two animations (same one twice, just as different speeds) I made from the highway data for the Kaggle traffic prediction competition.The data are travel times for 61 different sections of Sydney's M4 freeway, in both directions. The data comes i...
Happy New Year with R (2011, Fireworks!)
Last year I posted an animation created in R to celebrate the new year, and this year I've got a more fabulous animation (available on CRAN) The above animation comes from the demo('fireworks') in the R package animation 2.0-0. Thanks for the contri...
Happy New Year with R (2011, Fireworks!)
ast year I posted an animation created in R to celebrate the new year, and this year I’ve got a more fabulous animation. Unfortunately our Lord of CRAN (Kurt) has been out of office for several days, so I’m unable to publish my animation package on CRAN as scheduled. Anyway, for those who are curious
A Special Graphics Device in R: the Null Device
It is well-known that R has several graphics devices — either the screen devices (X11(), windows(), …) or the off-screen devices (pdf(), png(), …). We can query the default graphics device in options(): getOption('device') In a non-interactive session, the default device is pdf(). This is why Sweave has to create a file named Rplots.pdf no
Fun with infochimps: Animated Blog Post Hit Map
In a few weeks I will be visiting Chicago, and JD Long—the organizer of the local R users group—has graciously invited me to give a presentation. Ostensibly, the presentation will be on my recently released infochimps package, so I thought it was a good time to start actually putting together some examples and documentation for
Some ideas on communicating risks to the general public
SOME EMPIRICAL BASES FOR CHOOSING CERTAIN RISK REPRESENTATIONS OVER OTHERS This week DSN posts some thoughts (largely inspired by the work of former colleagues Stephanie Kurzenhäuser, Ralph Hertwig, Ulrich Hoffrage, and Gerd Gigerenzer) about communicating risks to the general public, providing references and delicious downloads where possible. Representations to use less often Single-event probabilities as
Rd2roxygen: Convert Rd to roxygen documentation
must admit that I have been tired of maintaining my R packages for a long time, and the main reason is I feel really uncomfortable with writing R documentations (Rd). The required structure of an R package mainly includes two directories R and man — the former for the R source code (typically functions), and
Animate .gif images in R / ImageMagick
Yesterday I surfed the web looking for 3D wireframe examples to explain linear models in class. I stumbled across this site where animated 3D wireframe plots are outputted by SAS. Below I did something similar in R. This post shows the few steps of how to create an animated .gif file using R and ImageMagick. 
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
