[R] search contrasts tutorial

[Robert Espesser]

I'm looking for a tutorial or notes on the use of contrasts factor in 
linear model in R, 
I've  found  some mails and infos about in various documents about R,
but I've probably missed
a good review on this subject. 



-- 
Robert Espesser     
Laboratoire Parole et Langage  UMR 6057, CNRS
29 Av. Robert Schuman  13621 AIX    (FRANCE)
Tel: +33 (0)4 42 95 36 26   Fax: +33 (0)4 42 59 50 96
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