Thanks to Brian Ripley and Roger Bivand for their quick replies to my  
question (original post
below).  Both politely pointed out that I had failed to check if I  
was running the latest version of
R (2.4).  I was attempting to download the current version of the  
"sp" package, which is not compatible with
v 2.3.


>
>>
>> On Fri, 1 Dec 2006, Don McKenzie wrote:
>>
>>> I have escaped Splus for Windows (mostly) and have started using
>>> R (v 2.3.1 on i686 redhat).  Installing packages has been routine  
>>> except
>>> for "sp" (classes and methods for spatial data).  I get the  
>>> following error
>>> message
>>> > install.packages("sp")
>>> Warning in download.packages(unique 
>>> (pkgs),destdir=tmpd,available=available,:
>>>            no package 'sp'  at the repositories
>>> Clearly I am missing something (probably obvious), but can someone
>>> enlighten me
>>> as to why the behavior of this package installation is different  
>>> from
>>> others?  sp is
>>> listed under "Contributed packages" at the R-project URL.  Thank you
>>> for your time.
>>
>>
>
>

Don McKenzie, Research Ecologist
Pacific WIldland Fire Sciences Lab
US Forest Service

Affiliate Assistant Professor
College of Forest Resources
CSES Climate Impacts Group
University of Washington

206.732.7824
dmck@u.washington.edu
donaldmckenzie@fs.fed.us




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