Coursera offers a number of on-line courses, all available for free and taught by experts in their fields. Today, the course Computing for Data Analysis begins. Taught by Johns Hopkins Biostatistics professor (and co-author of the Simply Statistics blog) Roger Peng, the course will teach you how to program in R and use the language for data analysis. Here's a brief introduction to the course:
The course will run for the next 4 week, with a workload of 3-5 hours per week. You can sign up at the link below.
Coursera: Computing for Data Analysis