Elegant way to check for missing packages and install them?

Elegant way to check for missing packages and install them?

r packages r-faq

r

Where does R store packages?

r packages

r

Load multiple packages at once

r packages

r

Painless way to install a new version of R?

r upgrade packages

r

Check for installed packages before running install.packages() [duplicate]

r packages

r

R: 2 functions with the same name in 2 different packages

function r packages conflict

r

Windows 7, update.packages problem: "unable to move temporary installation"?

r windows-7 permissions packages file-permissions

r

How to install multiple packages?

r packages

r

How do you use multiple versions of the same R package?

r versioning packages

r

Get the list of installed packages by user in R

r packages

r

Install a local R package with dependencies from CRAN mirror

r dependencies repository packages cran

r

Must R Packages Unload Dynamic Libraries When They Unload?

c r dll packages

r

Listing R Package Dependencies Without Installing Packages

r version-control dependencies packages

r

"import as" in R

r namespaces packages

r

How do I show the source code of an S4 function in a package?

r packages s4

r