ANOVA types I, II and III are explained here. For GLMM and GEE differences see here. I am using the anova() function in geepack to determine the overall impact of several categorical variable in a GEE. This package can only run type I ANOVA. I was wondering if there is another package that can generate a similar output but using a type III ANOVA method. I know the package car can do this for GLMM, but not for a GEE.