[R] A (not so) Short Introduction to S4

[Christophe Genolini]

Hi the list,
After months of keen work (!), thousands of questions on the R-help (and 
on the French R forum GuR), I am pleased to announce the birth of new a 
tutorial on S4:

          *** A (Not So) short Introduction to S4 ***

http://christophe.genolini.free.fr/webTutorial/index.html
It probably remains English faults. Moreover, my English translator was 
not a programmer at all. So all comments / corrections / suggestion of 
improvement are welcomes.

Christophe

PS : Am I allow to put the R logo on my web site or is it only for 
officials R core team tutorial / website?