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psmno
2009 Mar 02
2
Unrealistic dispersion parameter for quasibinomial
...l shows overdispersion as the
residual deviance is 48.81 on 5 degrees of freedom. If I use quasibinomial
to account for overdispersion the dispersion parameter estimate is 2501139,
which seems unrealistic. Any ideas as to why I am getting such a huge
dispersion parameter?
> y<-cbind(psmno,wsmno)
> ldhours<-log(idhours+1)
> lwpm<-log(wpm2wkb+1)
> y
psmno wsmno
[1,] 1 4
[2,] 0 54
[3,] 8 1
[4,] 0 63
[5,] 0 28
[6,] 4 291
[7,] 46 3
[8,] 117 85
> ldhours
[1] 0.000000 2.308567 5.078473 4.875035 2.339399 3.723039 5.5723...