On Sun, 9 Jan 2011, Hodgess, Erin wrote:
Dear R SIG Geo People:
I'm trying to replicate the material on page 100 in Prof. Bivand ASDAR
book. However, I am getting the following error message:
gmeta6()
Error in if (file.exists(file) == FALSE) if (!missing(asText) && asText == :
argument is of length zero
In addition: Warning message:
running command 'g.region.exe --interface-description' had status 309
Error in parseGRASS(cmd) : g.region not parsed
No, this is not expected (checked with R 2.12.1 on Native GRASS 6.4.0 on
Windows XP). You needed to provide full traceback() output, and
sessionInfo(), and which Windows; verbatim output from loading spgrass6
would also have been informative. Your problem is in your GRASS
installation, as the message:
running command 'g.region.exe --interface-description' had status 309
shows.
Start GRASS 6.4.0 in MSYS mode, and try to run
g.region.exe --interface-description
from the console prompt. MSYS mode is helpful, because running R through
the Layer Manager blocks the manager until R is terminated. Starting R in
an existing location on Windows entails:
Starting GRASS in MSYS mode, choosing location and mapset as normal
(Spearfish as location for the example refered to) - this sets many GRASS
environment variables that are needed by spgrass6;
Starting R with the complete path, e.g.:
"C:/Program Files/R/R-2.12.1/bin/i386/Rgui.exe
R_LIBS=C:/Program Files/r_libs"
(line break for mailer)
in the MSYS console;
Check that spgrass6 reports the correct location on loading.
Hope this helps,
Roger
This is in R-2.12.1 and GRASS version 6.4 on Windows. Does this look
familiar, please? Any suggestions would be much appreciated.
Thanks,
Erin
Erin M. Hodgess, PhD
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: hodge...@uhd.edu
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--
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: roger.biv...@nhh.no
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