package()This is similar to install.packages(), except it takes by
default the list of packages from .packages_to_install in
SciViews:TempEnv. That list is populated automatically by unfructuous calls
to package(), so that just a call to install() without arguments is
generaly sufficient.
Install(pkgs = get_temp(".packages_to_install"), ..., ask = TRUE)The list of packages to install (character vector). If missing,
the list is read from packages_to_install, which is cleared on success.
Further arguments passed to install.packages().
If TRUE and pkgs is missing, ask first to install the
packages.
Returns TRUE in case of success, FALSE otherwise. The function is
invoked for its side-effect of installing R packages.