On Jul 25, 2012, at 4:35 PM, Diana Marcela Martinez Ruiz <dianamm...@hotmail.com> wrote:
> > > hello > I want to know why when I use the function "svyglm" for a logistic regression > I get the AIC: NA. The code and the result is mestran below: > > mod2<-svyglm(APES_DICOT~Nivel_Educativo+Ocupacion_principal+Afiliacion_salud+Tiene_cuidador+Presencia_enfer_cronica+ > Consumo_tabaco+Consumo_alcohol+Presencia_Dolor+ABC_fis+ABC_instr+Anergia+Actividad_fisica_ultimo_año+ > Disminucion_fuerza_agarre+Hospitalizacion_ultimo_año+Urgencias_ultimo_año+Miedo_caer,design=Muestra.comp, > family=quasibinomial(link="logit")) > > error or warning: > > Degrees of Freedom: 282 Total (i.e. Null); 28 Residual > (32 observations deleted due to missingness) > Null Deviance: 323 > Residual Deviance: 186.9 AIC: NA > > > thanks Presumably based upon the same logic that Thomas (who you cc'd here) included in a post earlier today: https://stat.ethz.ch/pipermail/r-help/2012-July/319508.html Also, please start a new thread when you post, rather than replying to an existing thread. Regards, Marc Schwartz ______________________________________________ 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.