R is a statistical programming language that is a handy tool for astronomical data analysis. Grant Foster uses R extensively in analysis examples in his book Analyzing Light Curves, A Practical Guide.
Coursera is offering a 4 week course in R programming, "Computing for Data Analysis", beginning on 9/23/2013. All Coursera courses are free and are usually outstanding. This one is a Johns Hopkins course given by Roger Peng.
Also if you are interested in learning more about statistical techniques for error and data analysis Coursera has a beginner course or, for those of us who had courses in statistics in the middle ages, a refresher. This one is a Princeton University course and seems to be the equivalent of the introductory offering taught by Burton Malkiel when I was an undergrad. The course is Statistics 1. It is 12 weeks long and starts 9/22/2013.
Brad Walter, WBY