Social Network Measures using Matrices R package netmem version 1.0-3 Provides measures to describe and manipulate one-mode, two-mode, multiplex, and multilevel networks using matrix algebra. Implements functions for network centrality, cohesive subgroups, structural holes, similarity measures, path distances, signed networks, and random network generation. Supports ego-centric and whole-network analyses, including dyadic and triadic census, structural balance, and bipartite projections. Key references: Bonacich (1972) <doi:10.1080/0022250X.1972.9989806>, Breiger (1974) <doi:10.2307/2576011>, Kivelä et al. (2014) <doi:10.1093/comnet/cnu016>, Espinosa-Rada et al. (2024) <doi:10.1016/j.socnet.2023.11.008>. Software Depends: R (>= 4.0.0) Imports: igraph, Matrix, stats Suggests: knitr, rmarkdown, covr, testthat, usethis, styler Alejandro Espinosa-Rada <anespinosa@uc.cl> Comprehensive R Archive Network (CRAN) Alejandro Espinosa-Rada [cre, aut] (ORCID: <https://orcid.org/0000-0003-4177-1912>) GPL-3 2026-04-16 application/tgz https://CRAN.R-project.org/package=netmem doi:10.32614/CRAN.package.netmem en-US