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.
Package details |
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Author | Woojung Bae [aut, cre] (<https://orcid.org/0000-0001-6760-9900>), Dongrak Choi [aut] (<https://orcid.org/0000-0003-3280-3329>), Jun Yan [aut] (<https://orcid.org/0000-0003-4401-7296>), Sangwook Kang [aut] (<https://orcid.org/0000-0003-2658-481X>) |
Maintainer | Woojung Bae <matt.woojung@gmail.com> |
License | GPL (>= 3) |
Version | 4.3.2.3 |
URL | https://github.com/WooJungBae/afttest |
Package repository | View on CRAN |
Installation |
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