TCRUG will be having a meeting TONIGHT (2/16) at 5:30 PM. We will meet in ROOM 29 in Willey Hall. Willey Hall is located on the West Bank of the Minneapolis campus. See the Google map at http://goo.gl/tnRnU. Erik Iverson will be giving a talk ... [Read more...]

Last night, while working on something else that I want to finish, I ended up indulging in a bit of "yak shaving". I wondered how easy it would be to generate graphics in ggplot2 with rounded corners. I don't think that there is any nativ... [Read more...]

As the number of R users and contributed packages increases, activity on the R-help mailing list and the R tag on Stack Overflow also continues to rise. Users with the knowledge to help those asking questions naturally have limited time to ass... [Read more...]

The R Function of the Day series will focus on describing in plain language how certain R functions work, focusing on simple examples that you can apply to gain insight into your own data. Today, I will discuss the foodweb function, found in... [Read more...]

This post originally appeared on my Wordpress blog on May 23, 2010. I present it here in its original form. In my opinion, the description of orgmode by its creator as a tool "for keeping notes, maintaining ToDo lists, doing project planning,... [Read more...]

This post originally appeared on my Wordpress blog on May 23, 2010. I present it here in its original form. The R Function of the Day series will focus on describing in plain language how certain R functions work, focusing on simple example... [Read more...]

This post originally appeared on my Wordpress blog on October 4, 2009. I present it here in its original form. In order to honor the last day of the 2009 MLB regular season (excepting the Twins/Tigers tiebreaker Tuesday night), I was reading... [Read more...]

This post originally appeared on my Wordpress blog on October 1, 2009. I present it here in its original form. Whether at work or for personal projects, I use ESS a lot to perform interactive data analyses. The ability to write, edit, and su... [Read more...]

This post originally appeared on my Wordpress blog on September 23, 2009. I present it here in its original form. The R Function of the Day series will focus on describing in plain language how certain R functions work, focusing on simple ex... [Read more...]

Edit: This post originally appeared on my Wordpress blog on September 22, 2009. I present it here in its original form. The R Function of the Day series will focus on describing in plain language how certain R functions work, focusing on sim... [Read more...]

Edit: This post originally appeared on my Wordpress blog on September 20, 2009. I present it here in its original form. The R Function of the Day series will focus on describing in plain language how certain R functions work, focusing on sim... [Read more...]

Edit: This post originally appeared on my Wordpress blog on September 20, 2009. I present it here in its original form. John Tukey's preface to Exploratory Data Analysis begins with a useful rule, "It is important to understand what you can... [Read more...]