nhpp: Generate random recurrent episodes under a non homogeneous...

In survobj: Objects to Simulate Survival Times

Generate random recurrent episodes under a non homogeneous Poisson process

Description

Generate a random draws from the distribution of recurrent set of survival times under a a non homogeneous Poisson process following Leemis (1987)

Usage

nhpphr(SURVIVAL, hr, prevtime)

nhppaft(SURVIVAL, aft, prevtime)

Arguments

SURVIVAL	Object of survival class
hr	Vector of hazard ratios
prevtime	Vector of previous survival times
aft	Vector of accelerated failure ratios

Value

Vector of survival times

Functions

• nhpphr(): Recurrent episodes under a proportional hazard model

• nhppaft(): Recurrent episodes under an accelerated failure time model

Examples

s_obj <- s_exponential(fail = 0.4, t = 1)
hr <- c(1,1,0.5,0.5)
time1 <- rsurvhr(s_obj, hr)
time2 <- nhpphr(s_obj,hr, time1)

s_obj <- s_exponential(fail = 0.4, t = 1)
aft <- c(1,1,0.5,0.5)
timea <- rsurvaft(s_obj, aft)
timeb <- nhppaft(s_obj, aft, timea)

survobj documentation built on Sept. 11, 2024, 7:14 p.m.