[R-SIG-Mac] Can't get help.start() to work --- update.
Prof Brian Ripley
ripley at stats.ox.ac.uk
Thu Oct 29 12:03:47 CET 2009
On Thu, 29 Oct 2009, Duncan Murdoch wrote:
> On 29/10/2009 1:07 AM, Rolf Turner wrote:
>> After looking at the help for tools::startDynamicHelp and groping
>> around considerably, I had a look at the Firefox Preferences.
>> Going to Advanced --> Network --> Configure how Firefox connects
>> to the the Internet (Settings), I found stuff about ``Proxies''.
>> (Dunno what they are, but the word ``proxy'' came up in the error
>> message from Firefox.)
>> The existing setting was ``Manual proxy configuration''. I changed
>> to ``No proxy'' (hammer and hope; no idea what I'm doing) and
>> help.start() took effect without any error messages appearing
>> from Firefox.
>> But I still got help in the command window. Then I set
>> and it all worked.
>> I shall put options(help_type="html") into my .Rprofile, and
>> then help.start() should work automatically. Said he optimistically.
>> What trouble am I leaving myself open to by setting ``No proxy'', but?
> You may find that you can't connect to websites outside of your local
> network. Proxies are used to control connections in and out of networks.
> Without the proxy you might be blocked; with it, some sites will be blocked,
> and others will be redirected through some server that lets them out. It's
> also possible there will be no trouble, because the same scheme is sometimes
> used without the external blocking, but then usually the user of the system
> can't turn it on and off.
> You should be able to program the proxy to be selective, and let Firefox
> connect to R directly but still redirect external connections to other sites,
> but you'll need to take some action to do it.
In my Mac Firefox, the default for 'Manual proxy configuration' is to
have no-proxy exceptions for 'localhost, 127.0.0.1', which is exactly
what you need -- these are set on the same screen. (And I tested it
with a proxy for HTTP, and help.start worked.) So selectivity is the
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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