Classes and methods

Sean Davis wrote:

I just did some of this learning myself.  Here are a couple of links
that I found useful:

http://www.stat.auckland.ac.nz/S-Workshop/Gentleman/S4Objects.pdf
http://eeyore.ucdavis.edu/stat250/OOP.html

I found the first particularly easy reading and it got me going quickly
with S4 methods, which it seems to me are the way to go in most cases.

       If you want to simultaneously handcuff yourself, strap
       yourself into a strait jacket, and tie yourself in knots, and
       moreover write code which is incomprehensible to the human
       mind, then S4 methods are indeed the way to go.