gehan_estimation: Gehan's Estimation for Survival Data

In aftsem: Semiparametric Accelerated Failure Time Model

Gehan's Estimation for Survival Data

Description

This function performs Gehan's estimation of regression parameters proposed by Jin

Usage

gehan_estimation(y, Z, delta, rsmat, m, init = FALSE)

Arguments

y	A numeric vector of survival times.
Z	A matrix of covariates
delta	A numeric vector indicating censoring status
rsmat	A resampling matrix
m	Method for quantreg optimalization
init	A logical value indicating whether to return the initial fit object (default is 'FALSE'). If 'FALSE', only the coefficients are returned.

Value

If 'init = FALSE' and 'change == 1', returns a list with elements 'INTERCEPT', 'RESID', 'ITERS', 'CONVERGED', 'BETA'. Otherwise, returns a matrix of resampled Gehan estimates.

Note

This function is a slightly different version from the original by Zherzen Jin, part of the now not available 'lss' program.

Author(s)

Zherzen Jin

aftsem documentation built on Sept. 30, 2024, 9:17 a.m.