r-cran-formula software package provides GNU R package for extended model formulas, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install r-cran-formula
r-cran-formula is installed in your system.
Make ensure the r-cran-formula package were installed using the commands given below,
$ sudo dpkg-query -l | grep r-cran-formula *
You will get with r-cran-formula package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | GNU R |
| Package | r-cran-formula |
| Version | 1.1-1-1 |
| Description | GNU R package for extended model formulas |
| Sub Section | Gnu-r |