Check that exit occurs after enter, that spells from an individual do not overlap, and that each individual experiences at most one event.
check.surv(enter, exit, event, id = NULL, eps = 1e-08)
A vector of id's for the insane individuals. Of zero length if no errors.
Left truncation time.
Time of exit.
Indicator of event. Zero means 'no event'.
Identification of individuals.
The smallest allowed spell length or overlap.
Göran Broström
Interval lengths must be strictly positive.
join.spells, coxreg, aftreg
join.spells
coxreg
aftreg
xx <- data.frame(enter = c(0, 1), exit = c(1.5, 3), event = c(0, 1), id = c(1,1)) check.surv(xx$enter, xx$exit, xx$event, xx$id)
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