Package: gcemod
Type: Package
Title: Generalized Competing Event Models with Lunn-McNeil Testing
Version: 0.3.0
Date: 2026-09-02
Authors@R: 
    person("Loren", "Mell", email = "lmell@ucsd.edu", role = c("aut", "cre"))
Description: Fits generalized competing event (GCE) models and
        estimates covariate effects on omega-plus, the ratio of the
        hazard for an event of interest to the hazard for a competing
        event, on both the cause-specific (Cox) and subdistribution
        (Fine-Gray) hazard scales. Confidence intervals and p-values
        are obtained from the Lunn-McNeil (1995) stacked (augmented)
        data approach. The package builds GCE risk scores from the
        model linear predictor, identifies risk-score cutpoints that
        maximize the separation in omega-plus between groups, and
        produces cumulative incidence ("alligator") plots by risk group
        and calibration plots of predicted versus observed omega-plus.
        It also compares covariate effects across the primary,
        competing, and total (composite) events, and estimates
        covariate effects on the ratio of cumulative incidence
        functions (a cumulative-incidence-scale GCE model). Methods
        follow Carmona et al. (2014)
        <doi:10.1016/j.ijrobp.2014.03.047>, Mell et al. (2024)
        <doi:10.1016/j.eururo.2023.01.020>, and Lunn and McNeil (1995)
        <doi:10.2307/2532940>.
License: GPL (>= 2)
Encoding: UTF-8
Language: en-US
LazyData: true
Depends: R (>= 3.5.0)
Imports: survival, cmprsk, ggplot2 (>= 3.5.2), patchwork, stats
Suggests: testthat (>= 3.0.0), knitr, rmarkdown
VignetteBuilder: knitr
Config/testthat/edition: 3
Config/roxygen2/version: 8.0.0
NeedsCompilation: no
Packaged: 2026-09-24 10:20:17 UTC; root
Author: Loren Mell [aut, cre]
Maintainer: Loren Mell <lmell@ucsd.edu>
Repository: https://cran.r-universe.dev
Date/Publication: 2026-09-24 04:20:07 UTC
RemoteUrl: https://github.com/cran/gcemod
RemoteRef: HEAD
RemoteSha: e5f148ba30184f5afd3132ab712c6e0148884ab8