Model Cox

Analisis Survival di R

Heidi Seibold

Statistician at LMU Munich

Mengapa memakai model Cox?

$\rightarrow$ model semiparametrik

$\rightarrow$ asumsi distribusi kurang ketat

Tidak memungkinkan:

Model Cox:

cxmod <- coxph(Surv(time, cens) ~ horTh, 
               data = GBSG2)
coef(cxmod)

horThyes 
-0.3640099

Model Weibull:

wbmod <- survreg(Surv(time, cens) ~ horTh, 
                 data = GBSG2)
coef(wbmod)

(Intercept)    horThyes 
  7.6084486   0.3059506

Analisis Survival di R