ACTG181: ACTG181
In CopulaCenR: Copula-Based Regression Models for Multivariate Censored Data

ACTG181

R Documentation

ACTG181

Description

An example real dataset of bivariate interval-censored data with 204 subjects and one covariate. The data come from the AIDS Clinical Trials Group protocol ACTG 181. Two events are the shedding time (in months) of cytomegalovirus (CMV) in urine/blood and the colonization time (in months) of mycobacterium avium complex (MAC) in sputum/stool (Betensky and Finkelstein, 1999).

Usage

data("ACTG181")

Format

A data frame with 408 observations on the following 6 variables.

id: subject id
ind: margin indicator, 1=shedding time, 2=colonization time
Left: left bound of observed interval
Right: right bound of observed interval
status: censoring indicator; 1=interval-censor, 0=right censor. All observations are interval-censored in this dataset
x: covariate

Source

Betensky and Finkelstein (1999). A non-parametric maximum likelihood estimator for bivariate interval censored data. Statistics in Medicine 18 3089-3100.

Examples

data(ACTG181)
clayton_sp <- ic_spTran_copula(data = ACTG181,
                           copula = "Clayton",
                           l = 0, u = 25,
                           r = 3, m = 3,
                           var_list = "x")
summary(clayton_sp)

CopulaCenR documentation built on April 3, 2025, 10:29 p.m.