Implemented link functions for the promotion time cure rate model with negative binomial distribution

This function is used to specify different link functions for the count component of the promotion time cure rate model.

Usage

negbin(zeta = stop("'theta' must be specified"), link = "log")

Arguments

zeta

The known value of the additional parameter.

link

desired link function; currently implemented links are: log, identity and sqrt.

Value

A list containing the codes associated with the count distribution assumed for the latent variable N and the chosen link.