Series System Distributions from Dynamic Failure Rate Components R package serieshaz version 0.1.1 Compose multiple dynamic failure rate distributions into series system distributions where the system hazard equals the sum of component hazards. Supports hazard, survival, cumulative distribution function, density, sampling, and maximum likelihood estimation fitting via the dfr_dist() class from 'flexhaz'. Methods for series system reliability follow Barlow and Proschan (1975, ISBN:0898713692). Software Depends: R (>= 3.5.0) Imports: flexhaz, algebraic.dist, likelihood.model, generics, numDeriv Suggests: testthat (>= 3.0.0), knitr, rmarkdown Alexander Towell <lex@metafunctor.com> Comprehensive R Archive Network (CRAN) Alexander Towell [aut, cre] (ORCID: <https://orcid.org/0000-0001-6443-9897>) GPL (>= 3) 2026-04-13 application/tgz https://CRAN.R-project.org/package=serieshaz doi:10.32614/CRAN.package.serieshaz en-US