There is no 'R 2.5'! Advice as requested:
1) Study the R posting guide and give the details it asks you for,
accurately.
2) Read the rw-FAQ. Very relevant for Windows Vista users.
3) Don't use obsolete versions of R. R 2.6.0 is current, and we do make R
better at each release.
If you have R 2.5.0, it is possible that the intended behaviour (it should
create a personal library directory for you) may not work on Vista: this
*is* covered in the rw-FAQ for 2.5.0.
Comments from the rw-FAQ:
For an installation to be used by a single user, the simplest way
is to make use of the `personal library' introduced in R 2.5.0:
...
You can also have you a personal library, which defaults to the
directory `R\win-library\X.Y' of your home directory for versions X.Y.Z
of R. This location can be changed by setting the environment variable
`R_LIBS_USER', and can be found from inside R by running
`Sys.getenv("R_LIBS_USER")'. This will only be used if it exists so
you may need to create it: you can use
dir.create(Sys.getenv("R_LIBS_USER"), recursive = TRUE)
to do so. If you use `install.packages' and do not have permission to
write to the main or site library, it should offer to create a personal
library for you and install the packages there. This will also happen
if `update.packages' offers to update packages for you in a library
where you do not have write permission.
There can be additional security issues under Windows Vista: *Note Does
R run under Windows Vista?::. In particular, the detection that a
standard user has suitable permissions appears to be unreliable under
Vista, so we recommend that you do create a personal directory yourself.
The last point works better under R >= 2.5.1 than in 2.5.0. It now errs
on the side of caution, and occasionally says you do not have permission
when you do.
On Sat, 6 Oct 2007, Thanjavur Bragadeesh wrote:
Hi,
I run windows vista ultimate in my laptop and run R 2.5
I am trying to update the packages but it comes up with an error message
""Warning in install.packages(update[instlib == l, "Package"], l, contriburl =
contriburl, : 'lib' is not writable
Error in install.packages(update[instlib == l, "Package"], l, contriburl =
contriburl, : unable to install packages"
I am the adminsitrator on this computer and logged in as administrator.
can anyone advise. I treid to switch off most security - windows
firewall is off and so is macfee.
many thanks for your advise
bragadeesh
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