install_version(package, version = NA, compare = NA, repos = getOption("repos"), type = getOption("pkgType"), ...)
install. Otherwise, it looks at the list of archived source tarballs and tries to install an older version instead.
NULL to install from local files (with
extension .tar.gz for source packages).
Possible values are
binary types can be listed and downloaded but not
installed on other platforms.
The default is the appropriate binary type on Windows and
on the CRAN binary OS X distribution, otherwise
"source". For the platforms where binary packages
are the default, an alternative is
means try binary if available, otherwise try
source. (This will only choose the binary package if
its version number is no older than the source version.
In interactive use it will ask before attempting to
install source packages.)