[R] Object oriented programming: R x S+

[lmiceli at tendencias.com.br]

  I am interest in object oriented programming R
  I thought the R documentation about this subject is quit poor in relation
  to the S+
  So, is there any major difference between R and S+ in this approach? in
  particularly, about formal definitional of a class
  The S+ manual could be a useful guide?

  tks