[R] plot survival points

[Ronaldo Reis Jr.]

Hi all,
I have a little problem.
I make an weibull survival analysis using the survival package. It,s OK, them 
I have the functions. I plot this funcions with curve(). I want to make a 
plot with the real survival points (proportion of alive x time) and them add 
the curves to points. I have the time to dead, the censor data and my 
trataments. To analysis the model is:
model1 <- survreg(Surv(time,censor)~trat)
Exist any function in R to plot the real point (proportion of alive in time)?
Thanks
Ronaldo

-- 
That's odd.  That's very odd.  Wouldn't you say that's very odd?
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