| pkgs | character vector of the names of packages. If repos = NULL, a character vector of file paths. | 
| lib | character vector giving the library directories where to install the packages. | 
| repos | character vector, the base URL(s) of the repositories to use, can be NULLto install from local files | 
| method | download method | 
| destdir | directory where downloaded packages are stored | 
| dependencies | logical indicating whether to also install uninstalled packages which these packages depend on/link to/import/suggest (and so on recursively). Not used if repos = NULL. | 
| ... | Arguments to be passed to ‘download.file’ or to the functions for binary installs on OS X and Windows. |