Matthew,
You can change the matrix (restriction) involved. Start from
help(contr.sum)
to know how specify this.
Walmes.
==
Walmes Marques Zeviani
LEG (Laboratório de Estatística e Geoinformação, 25.450418 S, 49.231759 W)
D
I am trying to calculate Poisson regression based adjusted rate ratios in R,
but R's default in glm does not code the intercept as the global rate. In
SAS I use "cell means" coding so that the intercept is the global rate, but
I do not know how to do this in R. If anyone knows a way to make glm u
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