We use R a lot. R takes care of many our basic data management needs. R is an awesome statistical analysis package. R allows you to produce exceptional data graphics. The only problem is … R has a wicked learning … read ...

We use R a lot. R takes care of many our basic data management needs. R is an awesome statistical analysis package. R allows you to produce exceptional data graphics. The only problem is … R has a wicked learning … read ...

I recently got very close to the floating point trap, again, so here is a little tribute with some small examples!

After running a spatial data analysis with R session today, it became apparent that there are one or two teething problems installing the important rgdal package on Mac OS X operating systems. The usual install.packages(“rgdal”) won’t work. My colleague Jon Reades did some digging around to find this solution. I have tested it and it

Tal Galili’s blog post mentioned that WP-Syntax can highlight R codes. I downloaded the modified version of WP-Syntax in his blog site. The plugin throw an error when activated. I did not try the original version hosted in Wordpress. I found that WP-CodeBox use GeShi for syntax highlighting as WP-Syntax does.I used this plugin when I posted perl codes,...

At the request of a commenter I just wanted to clarify that any code released here for R or anything else is free and open source unless specifically stated otherwise. The open source BSD license for any code on GGD can be found on this copyright page.

Having worked with Unix (BSD, HPUX, IRIX, Linux and OSX), Windows (NT4, 2000, XP, Vista and 7) for quite a while I have seen a lot of different software tools. I would like to quickly exhibit my “must have” list. These are the packages that I find to be the single “must have offerings” in Related posts:

A few weeks ago I covered an R package for efficient mixed model regression that is capable of simultaneously accounting for both population stratification and relatedness to compute unbiased estimates of standard errors and p-values for genetic associ...

I recently did an analysis for the eMERGE network where I had lots of individuals from a small town in central Wisconsin where many of the subjects were related to one another. The subjects could not be treated as independent, but I could not use a fam...

e-mails with the latest R posts.

(You will not see this message again.)