inv_pgf {rsurv}

Inverse of the probability generating function

Description

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

Usage

inv_pgf(
  formula,
  incidence = c("bernoulli", "poisson", "negbin", "bell"),
  kappa = NULL,
  zeta = NULL,
  data,
  ...
)

Arguments

formula

formula specifying the linear predictor for the incidence sub-model.

incidence

the desired incidence model.

kappa

vector of regression coefficients associated with the incidence sub-model.

zeta

extra negative-binomial parameter.

data

a data.frame containing the explanatory covariates passed to the formula.

...

further arguments passed to other methods.

Value

A vector with the values of the inverse of the desired probability generating function.