Articles by John Baumgartner

The end of the line for error bars in R

November 5, 2013 | John Baumgartner

When plotting in R, I often use the segments function to add lines representing confidence intervals. This is a very simple way to plot lines connecting pairs of x,y coordinates. Recently I discovered that by default, segments are styled with … Continue reading → [Read more...]

R functions to filter rjags results

June 7, 2012 | John Baumgartner

A while back I was running a bunch of JAGS models through R, using the rjags (written by Martyn Plummer) and R2jags (by Yu-Sung Su) packages. These packages provide a great interface to the JAGS software, which allows analysis of … Continue reading → [Read more...]

I, Rbot: Tweeting from R

August 18, 2011 | John Baumgartner

Over the past few weeks I’ve been running batches of JAGS simulations from R. Although these models typically converged within an hour or so, more complex models can take days, or even weeks to converge. Because we, as humans, are … Continue reading → [Read more...]

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