Binary package “r-cran-r.oo” in ubuntu xenial
GNU R object-oriented programming with or without references
Methods and classes for object-oriented programming in R with or
without references. Large effort has been made on making definition of
methods as simple as possible with a minimum of maintenance for package
developers. The package has been developed since 2001 and is now
considered very stable. This is a cross-platform package implemented in
pure R that defines standard S3 classes without any tricks.