[R] prior weights in binomial gam

Ernesto Jardim ernesto at ipimar.pt
Tue Jul 20 17:43:01 CEST 2004


I'm adjusting a binomial gam and I use the inverse variance of each
proportion as weights in the gam function (it's a model for the sex
ratio of hake).

My doubt is what are these weights doing ? I get a negative UBRE and if
I use GCV the scale parameter is close to 0 ...



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