Re: [Rd] One more note

From: Brian D Ripley <>
Date: Mon, 09 Feb 2009 14:42:21 +0000 (GMT)

On Mon, 9 Feb 2009, Peter Dalgaard wrote:

> Terry Therneau wrote:
>> There are some warnings earlier in the log about my .Rd files (missing a
>> description of weights and subset in a couple). The only message that I
>> don't completely understand is
>> * checking foreign function calls ... OK
>> * checking R code for possible problems ... NOTE
>> Error in firstlib(which.lib.loc, package) :
>> Tcl/Tk support is not available on this system
>> I'm also curious about this. But I get the same aareg error on the Sun server
>> at work, without the Tcl message, so I know it is not primary.
> The most obvious reason would be if Tcl/Tk support is not available on
> your system....
> (a) Which system?
> (b) Do you have
>> capabilities("tcltk")
> tcltk
Because so many people assume that tcltk is present, those checks look for unexplained symbols in package tcltk. As it is not on your system, you will not be able to use the symbols and it does not matter. The call is inside try(), so the error is ignored.

Brian D. Ripley,        
Professor of Applied Statistics,
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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