Check the integrity of survival data.
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)
enter |
Left truncation time. |
exit |
Time of exit. |
event |
Indicator of event. Zero means 'no event'. |
id |
Identification of individuals. |
eps |
The smallest allowed spell length or overlap. |
Interval lengths must be strictly positive.
A vector of id's for the insane individuals. Of zero length if no errors.
Göran Broström
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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