Dear Terry,
Thanks so much for your help; I'm a bit of an R novice at the moment (as you
can probably tell from my failure to use the data argument!) so any help is
most welcome.
I'm hoping to use this model to generate transition probabilities for a
Markov model and, as such, I was wondering if
A few suggestions
1. Use the data argument
wfit <- survreg(Surv(Time, Status) ~ Treatment, data=survdata)
summary(wfit)
2. Use the predict function to look at your survival curve. This
avoids any parameter change mistakes. It also works for any
distribution.
pp <- 0:60/100
wsurv <-
Dear all,
I'm trying to fit a curve to some 1 year failure-time data, so that I can
extrapolate and predict failure rates up to 3 years. The data is in the
general form:
Treatment Time Status
Treatment A28 0
Treat
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