Tidy Tools for Joinpoint Regression Models R package joinpointR version 0.5.0 Provides tools to fit joinpoint regression models with a log-linear specification by levels of a categorical variable. The package acts as a wrapper around the 'segmented' package, facilitating model fitting, selection, and interpretation. It includes functions to estimate the Annual Percent Change (APC) and the Average Annual Percent Change (AAPC), along with their 95% confidence intervals, and to generate formatted summary tables and plots of results. Software Depends: R (>= 4.1.0) Imports: dplyr, purrr, tidyr, tibble, ggplot2, segmented, scales, flextable, rlang, stringr, stats, officer Suggests: testthat (>= 3.0.0) Tamara Ricardo <tamararicardo83@gmail.com> Comprehensive R Archive Network (CRAN) Tamara Ricardo [aut, cre] (ORCID: <https://orcid.org/0000-0002-0921-2611>) MIT + file LICENSE (https://CRAN.R-project.org/package=joinpointR/LICENSE) 2026-05-02 application/tgz https://CRAN.R-project.org/package=joinpointR doi:10.32614/CRAN.package.joinpointR