This package implements a robust iterative proportional fitting algorithm, which is useful in survey expansion, matrix balancing, population synthesis, and other applications. For example, this package could can weight a survey of households to match known population characteristics like the number of households by size. I hope you find that the vignettes and GitHub readme make it easy to get started. CRAN: https://cran.r-project.org/web/packages/ipfr/index.html GitHub: https://github.com/dkyleward/ipfr Vignette for basic usage: https://cran.r-project.org/web/packages/ipfr/vignettes/using_ipfr.html Advanced topics: https://cran.r-project.org/web/packages/ipfr/vignettes/common_ipf_problems.html Thank you for your time, Kyle Ward [[alternative HTML version deleted]]