Scalable Bayesian Inference for Dynamic Generalized Linear Models R package SDGLM version 0.4.0 Implements scalable Markov chain Monte Carlo (Sca-MCMC) algorithms for Bayesian inference in dynamic generalized linear models (DGLMs). The package supports Pareto-type and Gamma-type DGLMs, which are suitable for modeling heavy-tailed phenomena such as wealth allocation and financial returns. It provides simulation tools for synthetic DGLM data, adaptive mutation-rate strategies (ScaI, ScaII, ScaIII), geometric temperature ladders for parallel tempering, and posterior predictive evaluation metrics (e.g., R2, RMSE). The methodology is based on the scalable MCMC framework described in Guo et al. (2025). Software Depends: R (>= 3.5.0) Imports: stats, MASS, utils Suggests: testthat (>= 3.0.0) Guangbao Guo <ggb11111111@163.com> Comprehensive R Archive Network (CRAN) Guangbao Guo [aut, cre], X. Meggie Wen [aut], Lixing Zhu [aut] MIT + file LICENSE (https://CRAN.R-project.org/package=SDGLM/LICENSE) 2026-01-20 application/tgz https://CRAN.R-project.org/package=SDGLM doi:10.32614/CRAN.package.SDGLM