Trajectories and Phylogenies Simulator R package TiPS version 1.3.0 Generates stochastic time series and genealogies associated with a population dynamics model. Times series are simulated using the Gillespie exact and approximate algorithms and a new algorithm we introduce that uses both approaches to optimize the time execution of the simulations. Genealogies are simulated from a trajectory using a backwards-in-time based approach. Methods are described in Danesh G et al (2022) <doi:10.1111/2041-210X.14038>. Software Depends: R (>= 4.0.0) Imports: graphics, grDevices, gtools, inline, methods, Rcpp (>= 0.12.14), stats, stringr, utils LinkingTo: Rcpp, BH Suggests: knitr, rmarkdown, ape, testthat (>= 3.0.0) Gonche Danesh <gonche.danesh@gmail.com> Comprehensive R Archive Network (CRAN) Gonche Danesh [aut, cre, cph], Emma Saulnier [aut, cph], Olivier Gascuel [aut, cph], Marc Choisy [aut, cph, ths], Samuel Alizon [aut, cph, ths] GPL (>= 2) 2025-05-09 application/tgz https://CRAN.R-project.org/package=TiPS doi:10.32614/CRAN.package.TiPS