Retention Flow Tables and Sankey Diagrams R package retentionflow version 0.1.25 Creates transition tables, summaries, and interactive Sankey diagrams from longitudinal person-term-state data. Sankey diagrams visualize flows between states with link widths proportional to flow counts; see Kennedy and Sankey (1898) "The Thermal Efficiency of Steam Engines" <doi:10.1680/imotp.1898.19100> and Schmidt (2008) "The Sankey Diagram in Energy and Material Flow Management: Part I: History" <doi:10.1111/j.1530-9290.2008.00004.x>. The minimum input schema is one row per person per term with an identifier, term, and categorical state. Software Depends: R (>= 4.1.0) Suggests: htmlwidgets, plotly, testthat (>= 3.0.0) Alexander Nanni <alexander.nanni@gmail.com> Comprehensive R Archive Network (CRAN) Alexander Nanni [aut, cre] MIT + file LICENSE (https://CRAN.R-project.org/package=retentionflow/LICENSE) 2026-07-16 application/tgz https://CRAN.R-project.org/package=retentionflow doi:10.32614/CRAN.package.retentionflow