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.

Getting started

Package details

AuthorWoojung 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>)
MaintainerWoojung Bae <matt.woojung@gmail.com>
LicenseGPL (>= 3)
Version4.3.2.3
URL https://github.com/WooJungBae/afttest
Package repositoryView on CRAN
Installation Install the latest version of this package by entering the following in R:
install.packages("afttest")

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afttest documentation built on June 22, 2024, 11:56 a.m.