Free PDF R - Resources

R Fundamentals and Programming Techniques - 225 Page PDF E-Book

• Reading data                                               • Simple data summaries            • Graphics
• Scripts, Transcripts, ESS.                           • Stratified data summaries         • Sweave
• More on functions (example: bootstrap)    • Debugging and optimization    • A little on objects
• Regression models: lm, glm, coxph            • Packages

An Introduction to R - 106 Page PDF E-Book
R for Beginners - 76 Page PDF E-Book
R a Self-Learn Tutorial - 17 Page PDF   (Quite a few basic exercises as well)
R for Programmers - 104 Page PDF

Programming Exercises for R - 35 Page PDF  (Exercises and Answers)

R Reference Card - 4 Page PDF -  4 Page Reference on quite a few R Abilities  (Very Nice)