Microsoft R Open is the enhanced distribution of R used for for statistical analysis and Data science. This is the repository containing the source code for the open source components of Microsoft R Open. If you're looking for the latest changes, check the "public" branch.
/additionalPackages -> Microsoft authored GPLv2 licensed R packages
/patch -> Patches made to the R source code when building Microsoft R Open
/source -> CRAN R source code
/vendor -> Libraries needed to build Microsoft R Open
Please see the R Installation and Administration Guide for instructions on building the R source. Patches can be applied using GNU Patch.
The additional Microsoft authored packages can be built and installed using R CMD INSTALL after the R source has been built.
Learn more about Microsoft R open at https://mran.microsoft.com/.