After a month of on-again, off-again coding, I’ve finally completed a web site geared towards calculating the Value at Risk of the average investor’s portfolio. The site is visualvar.com. The big idea was to combine the statistical and visualization tools of R (especially ggplot2) with the web interface of Drupal. While I’m
ESPN's Bill Simmons (aka The Sports Guy) recently suggested that the primary cause of dwindling interest in Red Sox games by fans is that baseball games these days are too long. "It's not that fun to spend 30-45 minutes driving to a game, paying for parking, parking, waiting in line to get in, finding your seat ... and then,...
The iris data set pops up pretty regularly in statistical literature. It consists of 50 records from three species of Iris flowers (Iris setosa, Iris virginica and Iris versicolor). I came across it recently while reading Twenty rules for good graphics
One of the things I repeatedly include in referee reports, and in my responses to authors who have submitted papers to the International Journal of Forecasting, are comments designed to include the quality of the graphics. Recently someone asked on stats.stackexchange.com about best practices for producing plots. So I thought it might be helpful to Are MLB Games Getting Longer?
On July 29, 2010, I had a flight from Denver to Cincinnati. About an hour before boarding, I went to ESPN’s website and found a new article by Bill Simmons, a.k.a The Sports Guy (@sportsguy33 on Twitter). The basic premise of this article is that a core group of fans is losing interest in Red ggplot2 gui: Major feature set complete
(Written by Ian Fellows) There has been quite a bit of progress on the ggplot2 graphical user interface since the last post. All of the major features have been implemented, and are outlined in the vlog links below. What remains is to fix bugs, improve interface elements, and listen to feedback from users (that’s you). U.S. Unemployment Data: Animated Choropleth Maps
I was curious about creating maps with ggplot2 - and was happy to find that great minds have long since tackled this topic. Folks who are interested in how to learn about R (and ggplot2) might be interested in the process. (There should be ... Thinking about Graphs
A recent Wall Street Journal article ruminated about the degree that language shapes thought (rather than the other way around). This idea has rather profound implications in the more specific domain of programming languages. We initially learn a... The Mule goes SURFingA month ago I posted about “SURF”, the newly-established Sydney R user forum (R being an excellent open-source statistics tool). Shortly after publishing that post, I attended the inaugural forum meeting. While we waited for attendees to arrive, a few people introduced themselves, explaining why they were interested in R and how much experience they Pie Charts in ggplot2
...and other isomorphic data shape presentations...The Pie Chart has been widely criticized in recent times by statisticians. Edward Tufte goes as far as to call this the "prevailing orthodoxy." The reasons generally cited:The rel... |
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
