Displaying 1 result from an estimated 1 matches for "mgmtcat".
2003 Mar 12
2
quasipoisson, glm.nb and AIC values
Dear R users,
I am having problems trying to fit quasipoisson and negative binomials glm.
My data set
contains abundance (counts) of a species under different management regimens.
First, I tried to fit a poisson glm:
> summary(model.p<-glm(abund~mgmtcat,poisson))
Call:
glm(formula = abund ~ mgmtcat, family = poisson)
.
.
.
(Dispersion parameter for poisson family taken to be 1)
Null deviance: 1904.7 on 19 degrees of freedom
Residual deviance: 1154.3 on 16 degrees of freedom...