Hi Christophe,
just try :
legend("top",leg=c("a","b"),fill=c("black","blue"))
instead of your :>
legend("top",leg=c("a","b"),col=c("black","blue"),
fill=TRUE)
Regards, Olivier
--
Olivier ETERRADOSSI
Ma?tre-Assistant
CMGD / Equipe "Propri?t?s Psycho-Sensorielles des Mat?riaux"
Ecole des Mines d'Al?s
H?lioparc, 2 av. P. Angot, F-64053 PAU CEDEX 9
tel std: +33 (0)5.59.30.54.25
tel direct: +33 (0)5.59.30.90.35
fax: +33 (0)5.59.30.63.68
http://www.ema.fr