search for: presenca

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2002 Sep 20
1
warning in binomial analysis
Hi, I have make an analise with presence and absence, y=(1 e 0). I have a area continuous data and a sp data with 25 levels. I have 300 points. When I make glm((presenca/peso)~area,weights=peso,family=binomial,maxit=1000) where presenca is 0 or 1. peso is the unit = 1. area is the continuous data. The analysis is OK. When I put the sp and interactions in analysis this warning appear. glm((presenca/peso)~area*sp,weights=peso,family=binomial,maxit=1000) War...