Optimum Sample Allocation in Stratified Sampling R package stratallo version 3.0.1 Provides exact analytical algorithms for computing optimum sample allocations in stratified sampling. Supports classical Neyman-Tschuprow allocation, minimum-cost allocation under a variance constraint, and multi-domain allocation with controlled precision. Handles lower and upper bounds, cost constraints, and multiple domains. Includes helper functions for variance computation, allocation summaries, rounding, and example datasets for testing and benchmarking. Software Depends: R (>= 3.5.0) Imports: checkmate, lifecycle, Rdpack Suggests: knitr, rmarkdown, spelling, testthat (>= 3.0.0) Wojciech Wójciak <wojciech.wojciak@gmail.com> Comprehensive R Archive Network (CRAN) Wojciech Wójciak [aut, cre], Jacek Wesołowski [sad], Robert Wieczorkowski [ctb] GPL-2 2026-03-12 application/tgz https://CRAN.R-project.org/package=stratallo doi:10.32614/CRAN.package.stratallo en-US