Create a Survdef Object for a Weibull Distribution

Create a Survdef Object for a Weibull Distribution

survdefWeibull(shape, scale)

Arguments

shape	the shape parameter for the Weibull distribution. Parametrization is according to built-in R functions for the Weibull distribution, see ?Weibull for more information.
scale	the scale parameter for the Weibull distribution.

Value

a list with components:

S

a vectorized function that takes time as input and returns the survival probability at that time

h

a vectorized function that takes time as input and returns the hazard at that time

Examples

survdefWeibull(shape = 1.05, scale = 8573)
#> $S
#> function (t) 
#> pweibull(t, shape = shape, scale = scale, lower.tail = F)
#> <environment: 0x7fb6660a08d8>
#> 
#> $h
#> function (t) 
#> dweibull(t, shape = shape, scale = scale)/pweibull(t, shape = shape, 
#>     scale = scale, lower.tail = F)
#> <environment: 0x7fb6660a08d8>
#>