On 1 September 2017 at 15:50, Therneau, Terry M., Ph.D. wrote: | The system admins here ... I suggest you get these local admins to help you. These CRAN repos for Ubuntu are used by thousands of people every day, and they "just work", for both the recent releases and the most recent LTS. Dirk -- http://dirk.eddelbuettel.com | @eddelbuettel | edd at debian.org