Installs one or more packages. Similar to utils::install.packages, but
you may supply either package names and package_obj objects to this
function. You can install Github packages by supplying username/repo
to this function, or username$repo for Bitbucket packages.
Usage
install_packages(...)
Arguments
...
one or more package names or package_obj objects
Details
package_obj allows you to supply it an install function if
the package isn't on CRAN or in a public GitHub or Bitbucket repo.