surv <- Surv(time = page_visits$`last check-in`,
+ time2 = page_visits$next check-in,
+ event = page_visits$status,
+ type = "interval")
Error in Surv(time = page_visits$last check-in, time2 = page_visits$next check-in, :
Time variable is not numeric
This is probably something to do with the table only having two observations.