

>Hi Francis,

>You seem to be having a problem with repositories. The repository at
>opensourcesresources.org seems to be broken. Try installing maptools
>again using the command:

>install.packages("maptools", repos = "http://cran.case.edu")

>Hopefully this will solve your problem.

>Dan


This didn't work either - I suspect it could be a firewall problem. I have
found the suggestions below  in the central R FAQs, but none of them work.
Is there a way of downloading packages and installing them sans internet?

*****

2.19 The Internet download functions fail.


for example update.packages() and the menu items on the Packages menu.


We have had several reports of this, although they do work for us on all of
our machines. There are two known possible fixes.


(a) Use the alternative internet2.dll by starting R with the flag
--internet2 (see How do I install R for Windows?) or calling setInternet2
(TRUE). These cause R to use the Internet Explorer internals, which may
already be configured for use with proxies. Note that this does not work
with proxies that need authentication.


(b) A proxy needs to be set up: see ?download.file. Here are two versions
of an example (a real one, but from a machine that is only available
locally) of a command-line in a short cut:


     "path_to_R\bin\i386\Rgui.exe" http_proxy=http://user:pass@gannet:80/

     "path_to_R\bin\i386\Rgui.exe" http_proxy=http://gannet/
http_proxy_user=ask



The second version will prompt the user for the proxy username and password
when HTTP downloads are first used.


Francis P. Boscoe, Ph.D.
Research Associate Professor
Department of Epidemiology and Biostatistics
School of Public Health
University at Albany
Rensselaer, NY 12144 USA




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