HR.weibull: Function for calculating Weibull based hazard rate H0
In kbolab/distrcox: Package for simulating Cox proportional hazards distributions

Description Usage Arguments Details Value

Weibull function describing the hazard rate as function of the time.

1	HR.weibull(t, lambda, ni, inv = FALSE)

`t`	time
`lambda`	λ parameter of Weibull function
`ni`	ν parameter of Weibull equation
`inv`	if `FALSE` returns the inverse value of baseline hazard, if `TRUE` returns the baseline hazard.

Given a Cox fit object returned by a coxph function this function calulates the parameters to achieve the value of baseline hazard rate as function of the time. The result returned by function is either

\frac{1}{H_0 ≤ft ( t \right )}=≤ft ( λ^{-1}t \right )^{\frac{1}{ν}}

or

H_0 ≤ft ( t \right )=≤ft ( λ^{-1}t \right )^{-\frac{1}{ν}}

A numeric vector of the baseline hazard values H_{0}≤ft (t \right) or their inverse H_{0}^{-1}≤ft ( t \right ).

kbolab/distrcox documentation built on May 20, 2019, 8:10 a.m.