On Jan 12, 2011, at 12:51 PM, gaiarrido wrote:
Hello,
I´m starting with my PhD and I have to stop because i got a little
knowledge
in R and statistics.
I´ve got a model of this kind:
binary response variable: prevalence of infection (0/1)
3 categorical independent variables: sex, month and name of the area
I was trying with a full model like this, before the simplification
model<-aov(prevalencia~sex*month*area)
but the Fligner test told that i haven´t got homoscedascity, so I
suppose I
should trying with glm, with a model
model2<-glm(prevalencia~edad*sexo*mes*zona,binomial)
is that correct? where I must put the link (logit) ?
Why not read the help page regarding binomial that is on the help page
for glm. There you will learn what the default link is for binomial.
--
David
Thnks very much
--
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