Someone emailed me recently and asked about how APT uses random matrix theory in their factor model. Another question I …Continue reading »

The final version of RStudio v0.95 is now available for download from our website (thanks to everyone who put the preview release through its paces over the last couple of weeks!). Highlights of the new release include: Projects — A new system for managing R projects that enables easy switching between working directories and per-project contexts

Because I do not have root privileges on some of the machines I use, I build part of my software from source and install it into my own homedirectory. Doing that requires one to download R from CRAN, e.g. R… See more ›

Solutions in R to Project Euler problems are generally hard to find, so I've recently started posting R solutions on this site. Here are the previous problems: problem 22, problem 23 and problem 24Now let's...

Speaking of R… On the 16th, TIOBE Software released the Tiobe Index of the most popular programming languages. For the first time ever, R is in the Top 20. The top spots are, no surprise, occupied by Java and C respectively. More after the jump. The way this index is assembled is…interesting. The full way

Over the last year and half, I have faced numerous challenges with geocoding the data that I have used to showcase my passion for location analytics. In 2012, I decided to take thing in my control and turned to R. Here, I am sharing a simpl...

Last Friday I was fortunate enough to have the opportunity to travel to Boulder, CO and present R and Revolution Analytics to about 20 analysts as part of the Boulder BI Brain Trust (BBBT). It was a great pleasure to describe the vision for Revolution R Enterprise and got some great feedback from the particpants. During the event, I...