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...no way we can make work the following line and the others depend on it, please help use fit <- survfit(surv.marr) #Error in UseMethod("survfit", formula) : no applicable method for 'survfit' applied to an object of class "Surv" summary(fit, censor=TRUE) km1 <- summary(fit, censor=T) attributes(km1) -- Este mensaje le ha llegado mediante el servicio de correo electronico que ofrece Infomed para respaldar el cumplimiento de las misiones del Sistema Nacional de Salud. La persona que envia este correo asume el compromiso de usar el servic...

When I try to the code from library(survival) of library(ISwR), the following code survfit(Surv(days,status==1)) that could produce Kaplan-Meier estimates shows the following error "Error in survfit(Surv(days, status == 1)) : Survfit requires a formula or a coxph fit as the first argument" How it can be done in R.2.10 -- View this message in context:

...fit <- survfit(surv.marr) #Error in UseMethod("survfit", formula) : no >> applicable method for 'survfit' applied to an object of class "Surv" >> >> >> >> summary(fit, censor=TRUE) >> >> >> >> >> >> km1 <- summary(fit, censor=T) >> >> attributes(km1) >> >> >> >> >> >> >> >> >> >> >> >> -- >> >> Este mensaje le ha llegado mediante el servicio de correo electronico que >> ofrece Infomed para res...

...on it, please help use > > > > fit <- survfit(surv.marr) #Error in UseMethod("survfit", formula) : no > applicable method for 'survfit' applied to an object of class "Surv" > > > > summary(fit, censor=TRUE) > > > > > > km1 <- summary(fit, censor=T) > > attributes(km1) > > > > > > > > > > > > -- > > Este mensaje le ha llegado mediante el servicio de correo electronico que > ofrece Infomed para respaldar el cumplimiento de las misiones del Sistema > Nacional de...