Bayesian EXNEX Models for Survival Analysis in Basket Trials R package exnexSurv version 1.3.0 Implements the Bayesian Exchangeable Non-Exchangeable (EXNEX) framework for right-censored log-normal survival data in basket trials. Based on 'Rcpp' and 'RcppArmadillo', the package provides a fast Gibbs sampler supporting EXNEX, complete pooling, and no pooling models to facilitate methodological comparisons and simulation studies. Software Imports: Rcpp (>= 1.1.1), hardhat (>= 1.4.0), checkmate (>= 2.1.0) LinkingTo: Rcpp, RcppArmadillo Suggests: testthat (>= 3.3.0), survival (>= 3.8), knitr, rmarkdown, ggplot2, bayesplot, viridisLite Victor Ney <victorney@ime.usp.br> Comprehensive R Archive Network (CRAN) Victor Ney [aut, cre] MIT + file LICENSE (https://CRAN.R-project.org/package=exnexSurv/LICENSE) 2026-09-10 application/tgz https://CRAN.R-project.org/package=exnexSurv doi:10.32614/CRAN.package.exnexSurv