My first package, zipcode, is now available on CRAN. It contains the CivicSpace database of 43,191 U.S. zip codes.

Another exciting day at Adap’skiii!!! Yves Atchadé presented a very recent work on the fundamental issue of estimating the asymptotic variance estimation for adaptive MCMC algorithms, with an intriguing experimental observation that a non-converging bandwidth with rate 1/n was providing better coverage than the converging rate. (I always found the issue of estimating the asymptotic

How many gifts did my true love give to me on all twelve nights of Christmas? After seeing Information is Beautiful’s recent information animation, I decided that I’d make my own. I used R to generate a PDF and then did a screencast of the PDF with ffmpeg to make a video with the appropriate timings. The code for the PDF...

R’s default theme of the HTML help pages is too plain for me to read, but we can easily modify the theme, which is essentially a CSS file. You can find the file under: file.path(R.home('doc'), 'html', 'R.css') Simply replace this file with my version: which looks like: Of course you can design your own R.css

Issue 2 of The R Journal (the peer-reviewed journal devoted to R) was published over the Christmas break. In addition to news about the latest release of R, it also includes contributed articles on using GPU processing to fit Bayesian models in R, processing text data in R, solving differential equations in R, and much more. Follow the link...

This provides revised plots of the prediction distributions published yesterday. The previous plots of prediction distributions should be ignored — they are not doing as advertised. We show the prediction distribution of levels of several equity indices (plus oil price) at the end of 2011 assuming nothing happens. That is, we’ve taken out market trends … Continue reading...

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