Survsearch: Calculate the survival in selected times
In survrec: Survival analysis for recurrent event data

Description Usage Arguments Value Examples

Auxiliary function called from pshPLE, wcPLE and MLEFrailty.

The estimation using PLE (e.g. Kaplan-Meier) is a decreasing constant piecewise function with jumps in the times with events. Thus, to estimate the survival at any time we take the time of the precious event.

1 2	surv.search(tvals,time,surv)

`tvals`	vector of times where the survival function has to be estimated
`time`	vector of failures times (distinct)
`surv`	vector of survival of each time

Returns the survival in each selected time (tvals) from a vector of survival values

# we have the times 4,7,9,15,21,67
time<-c(4,7,9,15,21,67)

# and its survival (note: in this example there may be more
#                         than one event in some times)
surv<-c(0.8,0.7,0.65,0.55,0.43,0.22)

# We want to calculated the survival at times 1, 10, 32,64
surv.search(c(1,10,32,74),time,surv)