Visualises simple graphs (networks) based on a transition matrix,
utilities to plot flow diagrams, visualising webs,... Support for
the book "A practical guide to ecological modelling - using R as a
simulation platform" by Karline Soetaert and Peter M.J. Herman
(2009). Springer. Includes demo(flowchart), demo(plotmat), demo(plotweb)

WWW: https://cran.r-project.org/web/packages/diagram/