[R] GLM for proportional data

Mauricio Gomes almeida.gomes at yahoo.com.br
Sat Jan 24 10:53:04 CET 2015

I'd like asking your help to understand a statistical issue from my data set. I ran a GLM with proportional data, using a binomial distribution. However, I've found underdispersion in my model and I don't know how to deal with that. I'm aware that a solution for overdispersion is fit a model using a quasibinomial distribution, but I couldn't find in the literature a solution to my problem. I'd really thank if you can help me.

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