S . G . A .What else should I install for my R-GIS?
Raúl Nanclares 🍜@geonerd
https://cran.r-project.org/web/packages/rgeos/index.html
@geonerd
https://cran.r-project.org/web/packages/rgdal/index.html
If you're following a tutorial that is using those two packages look for something else.