r-cran-rinside binary package in Ubuntu Focal amd64

 The 'RInside' packages makes it easier to have "R inside" your C++
 application by providing a C++ wrapper class providing the R
 interpreter.
 .
 As R itself is embedded into your application, a shared library build
 of R is required. This works on Linux, OS X and even on Windows
 provided you use the same tools used to build R itself.
 .
 Numerous examples are provided in the eight subdirectories of the
 examples/ directory of the installed package: standard, mpi (for
 parallel computing) qt (showing how to embed 'RInside' inside a Qt
 GUI application), wt (showing how to build a "web-application" using
 the Wt toolkit), armadillo (for 'RInside' use with 'RcppArmadillo')
 and eigen (for 'RInside' use with 'RcppEigen'). The example use
 GNUmakefile(s) with GNU extensions, so a GNU make is required (and
 will use the GNUmakefile automatically).
 .
 Doxygen-generated documentation of the C++ classes is available at
 the 'RInside' website as well.

Source package