Dear all,
has a long time that I unsuccessfully try to obtain letters of each equal
means in a Tukey test of a GLM object, in a descending order. Could
someone, please, help me?

I try this:

m1 <- glm(comp~pop)
anova(m1,test="F")
lsmeans(m1, cld~pop, adjust='tukey')

But the letters I obtain are not in descendig order, and I dispend a lot of
time to organize it when the outcome have many letters (e.c. A to F
letters).

Thank for advance for the help!


Cleber Chaves

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