Here’s a list of a few R tutorials (in addition to the one I wrote), which I’ve found (or look) rather useful:
Google Developers R Tutorials
A slightly Different Introduction to R
R for Public Health
- Data types, part 1: Ways to store variables
- Data types part 2: Using classes to your advantage
- Data types, part 3: Factors!
- Data types part 4: Logical class
- Getting data in and out of R
- Scatterplots
- Summarizing Data
- Quick and Easy Subsetting
- Converting a dataset from wide to long
- For loops (and how to avoid them)
- The infamous apply function
Ramarro
Hadley Wickham
Coursera
edX
Misc
