[R] Can I set the proxy server and authentification from within R?

Prof Brian Ripley ripley at stats.ox.ac.uk
Thu Nov 9 08:05:20 CET 2006

On Thu, 9 Nov 2006, Werner Wernersen wrote:

> I am using Tinn-R and somehow I cannot point it to
> start a R shortcut with http_proxy settings including
> authentification. It always shows the .exe.
> Is there any way to set the proxy from within R or any
> other ideas how to do it?

>From the help file (?download.file)

      These environment variables must be set before the download code
      is first used: they cannot be altered later by calling

so you can for example use .Renviron or .Rprofile to set them (see 

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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