R help - Jun 2008 - How to get the 5th percentile( with a 95% CI )of the Kaplan-meier estimator?

Hi, all dear R experts,
 
    I am really stuck by how to get the 5th percentile( with a 95% CI )of the
Kaplan-meier estimator of survival function P(T>t). I have a simulated sample
of lifetime Ts, then I set the KM estimator
< km.fit<-survfit(Surv(T),type="kaplan-meier",data=Surv(T))
<quantile(km.fit,.05)
However, it gave "Error in order...". Does someone have some ideas of
how to solve it( with a 95% CI )? Thanks a lot!!!
 
Cheers,
Yan
 
 
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