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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>.

Versions across snapshots

VersionRepositoryFileSize
4.5.3 rolling linux/jammy R-4.5 afttest_4.5.3.tar.gz 250.5 KiB
4.5.3 rolling linux/noble R-4.5 afttest_4.5.3.tar.gz 261.6 KiB
4.5.3 rolling source/ R- afttest_4.5.3.tar.gz 25.6 KiB
4.5.3 latest linux/jammy R-4.5 afttest_4.5.3.tar.gz 250.5 KiB
4.5.3 latest linux/noble R-4.5 afttest_4.5.3.tar.gz 261.6 KiB
4.5.3 latest source/ R- afttest_4.5.3.tar.gz 25.6 KiB
4.5.3 2026-04-26 source/ R- afttest_4.5.3.tar.gz 25.6 KiB
4.5.3 2026-04-23 source/ R- afttest_4.5.3.tar.gz 25.6 KiB
4.5.3 2026-04-09 windows/windows R-4.5 afttest_4.5.3.zip 674.7 KiB
4.3.2.3 2025-04-20 source/ R- afttest_4.3.2.3.tar.gz 18.1 KiB

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