search for: coxp

...respecto a la organizacion del script. Tengo una variable que es -tamano del individuo- y quiero ver si hay diferencia en sobrevivencia respecto a tamano. Como diseno de campo los tamanos fueron ubicados de forma aleatoria en bloques al azar. Cuado planteo el script tengo algo como: modelo<-coxp(surv(deaths,day)~size+strata(block)) El factor bloque es random pero no se si esta es la nomenclatura correcta para testar mi hipotesis, o simplemente debo omitir el termino -strata- Gracias,saludos Eric Flores De Gracia School of Biosciences University of Exeter, Cornwall Campus Penryn,...

...d model would be suitable here. Based on what I’ve found in the literature 1) a marginal model or 2) a frailty (mixed-effects) model would be suitable here. If ct=crossing time, event=crossed/not crossed, tr=treatment, ptid=person ID, then the two models could be implemented like this: 1) coxp(surv(ct,event)~treat+cluster(code) 2) coxme(surv(ct,event)~treat+(1|code)), assuming a random intercept for each mother/infant Am I on the right track here? A second question relates to mediator analyses. We have variables regarding mothers’ negative affectivity which, according to our mode...