R CMD INSTALL to install the package. Will
also try to install dependencies of the package from
CRAN, if they're not already installed.install(pkg = NULL, reload = TRUE, ...)as.package for more informationTRUE (the default), will
automatically reload the package after installing.install.packages.R CMD build to avoid modifying the
local directory in any way.install_github,
install_gitorious,
install_url, install_version