survobj (version 3.1.1)

s_exponential: Factory of SURVIVAL objects with Exponential distributions

Description

Creates a SURVIVAL object with an Exponential distribution.

Usage

s_exponential(...)

Value

a SURVIVAL object of the exponential distribution family. See the documentation of s_factory for the methods available for SURVIVAL objects

Arguments

...

Parameters to define the distribution. See the Parameters for details

Parameters

To create an exponential survival object the following options are available:

lambda to specify the canonical parameter of the distribution, or

surv and t for the proportion surviving (no events) at time t, or

fail and t for the proportion failing (events) at time t

lambda = -log(surv)/t

lambda = -log(1-fail)/t

The parameters should be spell correctly as partial matching is not available

Examples

s_exponential(lambda = 3)
s_exponential(surv = 0.4, t = 2)
s_exponential(fail = 0.6, t = 2)