lucy is a wrapper for the popular igraph package. Particular attention is paid toward making igraph play nice with magrittr's pipes.
lucy also includes functions for graph propagation and simulation, so igraph objects are easier use in the building of probabilistic graphical models (eg. Bayesian networks and artificial neural networks).
However, lucy is generally useful to anyone who likes using igraph as a workhorse for manipulating graph data structures. See the vignettes for details.
This package is currently in development and not yet released on CRAN.
To get the current development version from github:
# install.packages("devtools")
devtools::install_github("robertness/lucy")