Publications by andrew
R package for Bayes factors
Richard Morey writes: You and your blog readers may be interested to know that a we’ve released a major new version of the BayesFactor package to CRAN. The package computes Bayes factors for linear mixed models and regression models. Of course, I’m aware you don’t like point-null model comparisons, but the package does more than that; it al...
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Text Decryption Using MCMC
The famous probabilist and statistician Persi Diaconis wrote an article not too long ago about the “Markov chain Monte Carlo (MCMC) Revolution.” The paper describes how we are able to solve a diverse set of problems with MCMC. The first example he gives is a text decryption problem solved with a simple Metropolis Hastings sampler....
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The new Stan 1.1.1, featuring Gaussian processes!
We just released Stan 1.1.1 and RStan 1.1.1 As usual, you can find download and install instructions at: http://mc-stan.org/ This is a patch release and is fully backward compatible with Stan and RStan 1.1.0. The main thing you should notice is that the multivariate models should be much faster and all the bugs reported for 1.1.0 have been fixed...
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Partial least squares path analysis
Wayne Folta writes: I [Folta] was looking for R packages to address a project I’m working on and stumbled onto a package called ‘plspm’. It seems to be a nice package, but the thing I wanted to pass on is the PDF that Gaston Sanchez, its author, wrote that describes PLS Path Analysis in general and shows how to use plspm in particular. It�...
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A must-read paper on statistical analysis of experimental data
Russ Lyons points to an excellent article on statistical experimentation by Ron Kohavi, Alex Deng, Brian Frasca, Roger Longbotham, Toby Walker, Ya Xu, a group of software engineers (I presume) at Microsoft. Kohavi et al. write: Online controlled experiments are often utilized to make data-driven decisions at Amazon, Microsoft . . . deployment an...
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Rcpp class in Sat 9 Mar in NYC
Join Dirk Eddelbuettel for six hours of detailed and hands-on instructions and discussions around Rcpp, RInside, RcppArmadillo, RcppGSL and other packages . . . Rcpp has become the most widely-used language extension for R. Currently deployed by 103 CRAN packages and a further 10 BioConductor packages, it permits users and developers to pass “w...
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PyStan!
Stan is written in C++ and can be run from the command line and from R. We’d like for Python users to be able to run Stan as well. If anyone is interested in doing this, please let us know and we’d be happy to work with you on it. Stan, like Python, is completely free and open-source. P.S. Because Stan is open-source, it of course would al...
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Stan in L.A. this Wed 3:30pm
Michael Betancourt will be speaking at UCLA: The location for refreshment is in room 51-254 CHS at 3:00 PM. The place for the seminar is at CHS 33-105A at 3:30pm – 4:30pm, Wed 6 Mar. [“CHS” stands for Center for Health Sciences, the building of the UCLA schools of medicine and public health. Here’s a map with directions.] Title of talk:...
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Cool GSS training video! And cumulative file 1972-2012!
Felipe Osorio made the above video to help people use the General Social Survey and R to answer research questions in social science. Go for it! Meanwhile, Tom Smith reports: The initial release of the General Social Survey (GSS), cumulative file for 1972-2012 is now on our website. Codebooks and copies of questionnaires will be posted shortly. ...
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How do I make my graphs?
Someone who wishes to remain anonymous writes: I’ve been following your blog a long time and enjoy your posts on visualization/statistical graphics matters. I don’t recall however you ever describing the details of your setup for plotting. I’m a new R user (convert from matplotlib) and would love to know your thoughts on the ideal setup:...
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