I've always found this to be helpful for programmers coming from other languages: http://www.johndcook.com/R_language_for_programmers.html http://www.johndcook.

I've always found this to be helpful for programmers coming from other languages: http://www.johndcook.com/R_language_for_programmers.html http://www.johndcook.com/R_language_for_programmers.html (not the author, just a fan)