When a polytomous variable (nominal scale) is used as an explanatory variable in GLM (generalized linear models), the result object or summary of glm function does not show the effect of this variable. In this case, anova function can be used. My question is on the appropriate procedure(s) for testing the effect of the polytomous variable (nominal scale) in glm with quasi family (not quasipoisson or quasibinomial, but quasi). Help of anova.glm says “for those with dispersion estimated by moments (e.g., gaussian, quasibinomial and quasipoisson fits) the F test is most appropriate”. In the case of quasi (not quasipoisson or quasibinomial), should I use the following?
anova(result object, test = "F") If there is another appropriate procedure of test in this situation, please let me know. Eiiti Kasuya ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
