bas_hazard: Baseline Hazard Step-Function

In TimeDepFrail: Time Dependent Shared Frailty Cox Model

Baseline Hazard Step-Function

Description

The method computes the baseline hazard step-function in each interval of the time-domain, using the estimated parameters \phi_k, \forall k

Usage

bas_hazard(object)

Arguments

object

S3 object of class 'AdPaik' returned by the main model output, that contains all the information for the computation of the frailty standard deviation.

Value

Numerical vector of length equal to the number of intervals of the time-domain, with the value of the baseline hazard step-function.

Examples

# Consider the 'Academic Dropout dataset'
data(data_dropout)

# Define the variables needed for the model execution
formula <- time_to_event ~ Gender + CFUP + cluster(group)
time_axis <- c(1.0, 1.4, 1.8, 2.3, 3.1, 3.8, 4.3, 5.0, 5.5, 5.8, 6.0)
eps <- 1e-10
categories_range_min <- c(-8, -2, eps, eps, eps)
categories_range_max <- c(-eps, 0, 1 - eps, 1, 10)


# Call the main model
result <- AdPaikModel(formula, data_dropout, time_axis,
                      categories_range_min, categories_range_max)

bas_hazard(result)

TimeDepFrail documentation built on April 11, 2025, 5:41 p.m.