update.packages | R Documentation |
old.packages
indicates packages which have a (suitable) later
version on the repositories whereas update.packages
offers to
download and install such packages.
new.packages
looks for (suitable) packages on the repositories
that are not already installed, and optionally offers them for
installation.
update.packages(lib.loc = NULL, repos = getOption("repos"), contriburl = contrib.url(repos, type), method, instlib = NULL, ask = TRUE, available = NULL, oldPkgs = NULL, ..., checkBuilt = FALSE, type = getOption("pkgType")) old.packages(lib.loc = NULL, repos = getOption("repos"), contriburl = contrib.url(repos, type), instPkgs = installed.packages(lib.loc = lib.loc, ...), method, available = NULL, checkBuilt = FALSE, ..., type = getOption("pkgType")) new.packages(lib.loc = NULL, repos = getOption("repos"), contriburl = contrib.url(repos, type), instPkgs = installed.packages(lib.loc = lib.loc, ...), method, available = NULL, ask = FALSE, ..., type = getOption("pkgType"))
lib.loc |
character vector describing the location of R
library trees to search through (and update packages therein), or
|
repos |
character vector, the base URL(s) of the repositories
to use, e.g., the URL of a CRAN mirror such as
|
contriburl |
URL(s) of the contrib sections of the
repositories. Use this argument if your repository is
incomplete. Overrides argument |
method |
Download method, see |
instlib |
character string giving the library directory where to install the packages. |
ask |
logical indicating whether to ask the user to select
packages before they are downloaded and installed, or the character
string |
available |
an object as returned by |
checkBuilt |
If |
oldPkgs |
if specified as non-NULL, |
instPkgs |
by default all installed packages,
|
... |
Arguments such as |
type |
character, indicating the type of package to download and
install. See |
old.packages
compares the information from
available.packages
with that from instPkgs
(computed by
installed.packages
by default) and reports installed
packages that have newer versions on the repositories or, if
checkBuilt = TRUE
, that were built under an earlier minor
version of R (for example built under 3.3.x when running R 3.4.0).
(For binary package types there is no check that the version on the
repository was built under the current minor version of R,
but it is advertised as being suitable for this version.)
new.packages
does the same comparison but reports uninstalled
packages that are available at the repositories. If
ask != FALSE
it asks which packages should be installed in the
first element of lib.loc
.
The main function of the set is update.packages
. First a list
of all packages found in lib.loc
is created and compared with
those available at the repositories. If ask = TRUE
(the
default) packages with a newer version are reported and for each one
the user can specify if it should be updated. If so the packages are
downloaded from the repositories and installed in the respective
library path (or instlib
if specified).
For how the list of suitable available packages is determined see
available.packages
. available = NULL
make a call
to available.packages(contriburl = contriburl, method = method)
and hence by default filters on R version, OS type and removes
duplicates.
update.packages
returns NULL
invisibly.
For old.packages
, NULL
or a matrix with one row per
package, row names the package names and column names
"Package"
, "LibPath"
, "Installed"
(the version),
"Built"
(the version built under), "ReposVer"
and
"Repository"
.
For new.packages
a character vector of package names,
after any selected via ask
have been installed.
Take care when using dependencies
(passed to
install.packages
) with update.packages
,
for it is unclear where new dependencies should be installed. The
current implementation will only allow it if all the packages to be
updated are in a single library, when that library will be used.
install.packages
,
available.packages
, download.packages
,
installed.packages
, contrib.url
.
The options listed for install.packages
under
options
.
See download.file
for how to handle proxies and
other options to monitor file transfers.
INSTALL
, REMOVE
, remove.packages
,
library
, .packages
, read.dcf
The ‘R Installation and Administration’ manual for how to set up a repository.
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