hi everybody

I have to do a lot of Anova with R and I would like to have another type of
coefficients coding.. I explain.

by default if I have 2 temperatures for an experience. 100°C or 130°C and I
want to see the temperature effect on the presure
I want to estimate the coefficient of each temperature.

I will obtain ,with the anova, juste one coefficients for example +3,56 (for
100°C), and the other (for 130°C) is always  zero.

but I prefer to obtain + 1,78 or the first effect and -1,78 for the second
(the intercept is also different too)

my script is (it s just an example)

rinfo2 <- (lm(pression~ temp, data=rebe))
anova(rinfo2)
summary(rinfo2)

what can I change to obtain what I need?

best regards



-- 
_________________________________
Vincent GUYADER
École nationale supérieure d'agronomie de Rennes (ENSAR)
EN156 - Spécialité statistiques appliquées
06.22.85.34.27

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