[R] using identity link for binomial familly with glm

[Stephane Dupas]

-- Error in binomial(link = "identity") : identity link not available for binomial family, available links are "logit",  "probbit", "cloglog" and "log"

Hi, I have a question, dealing with this error response. I'm trying to 
make anova on percentages. The variablethat has a biological 
significance is actually the percentage itself. Is it really not 
possible, to test a simple linear probability model with glm, using 
binomial model and identity link function ? I know it's hard to deal 
with probability responses out of [0,1] but well... help me !
There is an example of such a linear probability model in Agresti (1997) 
some software aparently do it
Thanks,
Stéphane



--


Stéphane DUPAS

IRD c/o CNRS
Lab P.G.E., Bat 13,
1 av terrasse
91198 Gif sur Yvette
tel 33 1 69 82 37 04


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