Generates Incidence Matrices and Bipartite Graphs R package incidentally version 1.0.4 CRAN Task View: NetworkAnalysis (https://CRAN.R-project.org/view=NetworkAnalysis) Functions to generate incidence matrices and bipartite graphs that have (1) a fixed fill rate, (2) given marginal sums, (3) marginal sums that follow given distributions, or (4) represent bill sponsorships in the US Congress <doi:10.31219/osf.io/ectms>. It can also generate an incidence matrix from an adjacency matrix, or bipartite graph from a unipartite graph, via a social process mirroring team, group, or organization formation <doi:10.48550/arXiv.2204.13670>, or examine the space of binary matrices with fixed marginals. Software Depends: R (>= 2.10) Imports: igraph, Matrix, methods, stats, xml2 Suggests: backbone, rmarkdown, knitr Zachary Neal <zpneal@msu.edu> Comprehensive R Archive Network (CRAN) Zachary Neal [aut, cre] (ORCID: <https://orcid.org/0000-0003-3076-4995>) GPL-3 2025-10-14 application/tgz https://CRAN.R-project.org/package=incidentally doi:10.32614/CRAN.package.incidentally