nbreg¶ Fit a negative-binomial count-response model. When to use How do I model overdispersed non-negative count outcomes as a function of predictors? Syntax¶ nbreg y x1 x2 [, robust cluster(var) noconstant] Examples¶ nbreg visits age income nbreg claims age exposure, robust See also¶ Command Reference Index User Guide In-App Help System