Hello,
I am just beginning to use R, after several years of using S-Plus (with
mixed success). I saw a recommendation on another mailing list for the
Environmetrics and Spatial Task Views, as a good way for a new user to get
started actually using R. The Task Views page at CRAN says:
To automatically install these views, the ctv package needs to be
installed, e.g., via
install.packages(ctv)and then the views can be installed via install.views
(after loading ctv), e.g.,
install.views(Econometrics)
I have installed ctv and I'm assuming that loading ctv means entering
library(ctv)
If I then enter
install.views(Environmetrics)
I get the error message
Warning message:
CRAN task view Environmetrics not available in:
install.views(Environmetrics)
If I then go up to the Packages menu and Set CRAN Mirror to, for example,
USA (CA 2) and again enter
install.views(Environmetrics)
I now get the error message
Error in install.packages(pkgs, CRAN = views[[i]]$repository, dependencies
= dependencies, :
unused argument(s) (CRAN ...)
Entering CRAN.views in the R GUI does indeed give a complete list of task
view names, topics, maintainers, and repositories. Selecting different CRAN
mirrors produces the same error messages as above, as does attempting to
install a different task view.
I have searched the R-help mailing list archive and found several postings
announcing the availability of task views, but not on how to install them. I
have searched the pdf manuals, and found no instances of task view. I have
also searched the FAQs. The help for install.views basically repeats the
information on the CRAN site, providing information on using the function,
but not on actually installing task views. The example in the article on
task views in the May 2005 issue of R News uses the lib = argument, which
is not mentioned in the help for install.views. It appears that the
instructions at CRAN for installing task views are missing at least one
step. Can anyone point me to a reliable set of instructions for installing
(not to mention actually using) a task view? Many thanks in advance.
Regards,
Mark C. Andersen
Dr. Mark C. Andersen
Associate Professor
Department of Fishery and Wildlife Sciences
New Mexico State University
Las Cruces NM 88003-0003
phone: 505-646-8034
fax: 505-646-1281
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