Zero-Inflated and Hurdle INAR(1) Models R package ZIHINAR1 version 0.2.1 Provides tools for estimating Zero-Inflated INAR(1) (ZI-INAR(1)) and Hurdle INAR(1) (H-INAR(1)) models using 'Stan'. It allows users to simulate time series data for these models, estimate parameters, and evaluate model fit using various criteria. Functions include model estimation, simulation, and likelihood-based metrics. Software Depends: R (>= 4.0.0) Imports: rstan, VGAM, actuar, matrixStats, coda, ggplot2, gridExtra, stats, knitr, utils, HMMpa Suggests: testthat (>= 3.0.0), rmarkdown Fusheng Yang <fusheng.yang@uconn.edu> Comprehensive R Archive Network (CRAN) Fusheng Yang [aut, cre], Victor Hugo Lachos Davila [aut] GPL-3 2026-02-12 application/tgz https://CRAN.R-project.org/package=ZIHINAR1 doi:10.32614/CRAN.package.ZIHINAR1