Thank you David for your answer.
The lattice package was not a good example. The thing is the same errors occurs
with any package I try to install.
Thank you
Miguel
On Jul 28, 2011, at 4:31 PM, David Winsemius wrote:
>
> On Jul 28, 2011, at 3:08 PM, Miguel Leal wrote:
>
>> I'm having problems installing packages.
>>
>> I'm working on the R version 2.13.1 in a Mac OS X version 10.6.8.
>>
>> I'm not able to search or install packages. For instance, I have the
>> following error message:
>>
>>> install.packages("lattice")
>> Warning: unable to access index for repository
>> http://cran.pt.r-project.org/bin/macosx/leopard/contrib/2.13
>
> Looks like a weird URL. How did you come up with that one? When I go to it
> with my browser it times out. Why not pick a working repository?
>
>> Warning message:
>> In getDependencies(pkgs, dependencies, available, lib) :
>> package 'lattice' is not available (for R version 2.13.1)
>
> And I thought lattice was part of the default packages installation, so would
> not have expected any need to install it.
>
> Have you just tried library(lattice) from the R console?
>
> --
>
> David Winsemius, MD
> West Hartford, CT
>
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