Transition hazards for piecewise exponential event times

This creates a list with class TransitionParameters containing hazards, time intervals and Weibull rates for piecewise exponential event times in an illness-death model.

piecewise_exponential(h01, h02, h12, pw01, pw02, pw12)

Arguments

h01

(numeric vector)
constant transition hazards for 0 to 1 transition

h02

(numeric vector)
constant transition hazards for 0 to 2 transition

h12

(numeric vector)
constant transition hazards for 1 to 2 transition

pw01

(numeric vector)
time intervals for the piecewise constant hazards h01

pw02

(numeric vector)
time intervals for the piecewise constant hazards h02

pw12

(numeric vector)
time intervals for the piecewise constant hazards h12

Value

List with elements hazards, intervals, weibull_rates and family(piecewise exponential).

Examples

piecewise_exponential(
  h01 = c(1, 1, 1), h02 = c(1.5, 0.5, 1), h12 = c(1, 1, 1),
  pw01 = c(0, 3, 8), pw02 = c(0, 6, 7), pw12 = c(0, 8, 9)
)
#> $hazards
#> $hazards$h01
#> [1] 1 1 1
#> 
#> $hazards$h02
#> [1] 1.5 0.5 1.0
#> 
#> $hazards$h12
#> [1] 1 1 1
#> 
#> 
#> $intervals
#> $intervals$pw01
#> [1] 0 3 8
#> 
#> $intervals$pw02
#> [1] 0 6 7
#> 
#> $intervals$pw12
#> [1] 0 8 9
#> 
#> 
#> $weibull_rates
#> $weibull_rates$p01
#> [1] 1
#> 
#> $weibull_rates$p02
#> [1] 1
#> 
#> $weibull_rates$p12
#> [1] 1
#> 
#> 
#> $family
#> [1] "piecewise exponential"
#> 
#> attr(,"class")
#> [1] "TransitionParameters"