Yesterday night, we started the Hierarchical Bayesian Methods in Ecology workshop by trading stories. Everyone involved in the programme discussed his/her favourite dataset and corresponding expectations from the course. I found the exchange most interesting, like the one we had two years ago in Gran Paradiso, because of the diversity of approaches to Statistics reflected 
In the spur of the moment, I cycled over to Dominican, one of the two small colleges in town, to see if I could snag a remaining ticket to see Billy Bragg perform. Turned out I could, and it became a nice evening out. Darren Hanlon started up the ev...
Dirk released Rcpp 0.8.6 to CRAN Most of the development of this release was trigerred by a question on the Rcpp-devel mailing list. After Richard's question, we added d-p-q-r functions for most of the distributions available in R. The file runit...
The dating site OK Cupid often publishes on their blog interesting analyses of based on the self-reported data from their users, and the latest post is no exception. Most commentary has focused on race/gender preference analysis: according to the "Likes" sections of OK Cupid profiles, white males like "sweaty guitar rock, bro-on-bro comedies, things with engines, and dystopias" whereas...
I came to R from SQL. I’ve heard that packages such as reshape and plyr are quite beautiful, but to me they are somewhat non-intuitive. I’m always looking for SELECT mean(sodium) as mean, variance(sodium) as var FROM texas GROUP BY … Continue reading →
Hadley Wickham has just released updates to his data-manipulation packages for R, plyr and reshape (now called reshape2), that are much faster and more memory-efficient than the previous incarnations. The reshape2 package lets you flexibly restructure and aggregate data using just three functions (melt, acast and dcast), whereas the plyr package is kind of like a supercharged SQL "GROUP...
Cyrus writes: I was teaching a class on multilevel modeling, and we were playing around with different method to fit a random effects logit model with 2 random intercepts---one corresponding to "family" and another corresponding to "co...
After a somewhat longer than usual break, we now have a new release of Rcpp on CRAN and in Debian. This release adds quite few things. The main one may be the addition of density, distribution, quantile and random number functions for a rather large n...
After a somewhat longer than usual break, we now have a new release of Rcpp on CRAN and in Debian. This release adds quite few things. The main one may be the addition of density, distribution, quantile and random number functions for a rather large...
I requested an academic copy of the Revolution R Enterprise today. Since they only have Windows or Redhat version, I installed it on an old spare machine dual-booting Linux and Windows. I like what they did with the IDE (the debugger is nice) and ...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
