afttest: Model Diagnostics for Accelerated Failure Time Models
A collection of model checking methods for semiparametric
accelerated failure time (AFT) models under the rank-based approach. For the
(computational) efficiency, Gehan's weight is used. It provides functions to
verify whether the observed data fit the specific model assumptions such as
a functional form of each covariate, a link function, and an omnibus test.
The p-value offered in this package is based on the Kolmogorov-type supremum
test and the variance of the proposed test statistics is estimated through
the re-sampling method. Furthermore, a graphical technique to compare the
shape of the observed residual to a number of the approximated realizations
is provided. See the following references; A general model-checking
procedure for semiparametric accelerated failure time models, Statistics and
Computing, 34 (3), 117 <doi:10.1007/s11222-024-10431-7>; Diagnostics for
semiparametric accelerated failure time models with R package 'afttest',
arXiv, <doi:10.48550/arXiv.2511.09823>.
| Version: |
4.5.2.2 |
| Depends: |
R (≥ 3.4.0) |
| Imports: |
survival, aftgee, ggplot2, gridExtra |
| LinkingTo: |
Rcpp, RcppArmadillo |
| Suggests: |
knitr, rmarkdown, testthat (≥ 3.0.0) |
| Published: |
2026-02-24 |
| DOI: |
10.32614/CRAN.package.afttest |
| Author: |
Woojung Bae  [aut,
cre],
Dongrak Choi
[aut],
Jun Yan [aut],
Sangwook Kang
[aut] |
| Maintainer: |
Woojung Bae <matt.woojung at gmail.com> |
| BugReports: |
https://github.com/WooJungBae/afttest/issues |
| License: |
GPL (≥ 3) |
| URL: |
https://github.com/WooJungBae/afttest |
| NeedsCompilation: |
yes |
| Language: |
en-US |
| Citation: |
afttest citation info |
| Materials: |
README |
| CRAN checks: |
afttest results |
Documentation:
Downloads:
Linking:
Please use the canonical form
https://CRAN.R-project.org/package=afttest
to link to this page.