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.
Version: 4.3.2.3 Depends: R (≥ 3.4.0) Imports: survival, aftgee, ggplot2, gridExtra LinkingTo: Rcpp, RcppArmadillo Suggests: knitr, rmarkdown, testthat (≥ 3.0.0) Published: 2024-01-16 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.
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