Computing for Statistical Genetics: nice R slides

Thomas Lumley and Ken Rice have made a very nice set of "Computing for Statistical Genetics" slides on R that they prepared for the European Institute in Statistical Genetics.  This set of slides is available here. 

Excellent slides on R

Here are some excellent slides on R (pdf), which were made by Dr. Thomas Lumley for a Two-day Tutorial in "R" Statistical Computing that he gave in February 2006. 
 
These are by far the best slides I've seen so far on R, with lots of very useful advice and insights into how to use R optimally.