You have still not given me enough information to reproduce your
problem. "Why doesn't it include all years?" I have no way of knowing,
since we have no data.
--- begin included message --
halo david
when I use type= 'interval'
Call: survfit(formula = Surv(ingreso, fecha, estado, type = "interval")
~
categoria)
and when I use just
Call: survfit(formula = Surv(ingreso, fecha, estado) ~ categoria)
I don t know why when I use type = "interval" it does not survival
calculed for very year
regards
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