Hi, I would like to know the development of Svyglm estimator. I would like to know the difference between weighted glm and svyglm and wich is the estimator in SVYGLM. I have read differents books (Complex Surveys: a guide to analysis using R, among others) but I don`t find the estimator for svyglm I konw that doesnt use maximum likelihood but I would like to have the develepment for the estimator. I also would like to know if exist any sintax formula for compare "svyglm" models like "stepwise" does for "glm" . Thanks, Natalia [[alternative HTML version deleted]]