Package is actually only available on github :
devtools::install_github("datastorm-open/DependenciesGraphs")
For use directly in R, you must first load package(s) using library
function :
library("ibr")
# Prepare data
dep <- envirDependencies("package:ibr")
# visualization
plot(dep)
# Prepare data
dep <- funDependencies("package:ibr","iterchoiceS1")
# visualization
plot(dep)
launch.app()