check.surv {eha}

Check the integrity of survival data.

Description

Check that exit occurs after enter, that spells from an individual do not overlap, and that each individual experiences at most one event.

Usage

check.surv(enter, exit, event, id = NULL, eps = 1e-08)

Arguments

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.

Details

Interval lengths must be strictly positive.

Value

A vector of id's for the insane individuals. Of zero length if no errors.

Author(s)

Göran Broström

See Also

join.spells, coxreg, aftreg

Examples

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)