On Tue, 31 Jan 2012, Obrien, Josh wrote:
I am a long-time R user, currently working with a team of ArcGIS users.
The GIS guys would like to be able pass me data in the form of ESRI
personal geodatabases (*.mdb), but the OGR driver that reads such files
(PGeo) is not included in the Windows rgdal binary.
Roger Bivand's 2008 book (p 111) and the "README.windows" file located
in rgdal's main directory both have the same advice for me. They tell me
that "the R Windows binary rgdal package can be built against an FWTools
binary, using VC++."
Josh,
Could you please try to install R-devel for Windows:
http://cran.r-project.org/bin/windows/base/rdevel.html
and install the CRAN binary of rgdal? Prof. Brian Ripley and Uwe Ligges
have been continuing their excellent support for us and the whole
community, and as part of build train enhancements for forthcoming 2.15 on
Windows, have built GDAL with more dependencies, including ODBC. For me on
R-devel, ogrDrivers() now shows:
23 MapInfo File TRUE
24 Memory TRUE
25 MSSQLSpatial TRUE
26 ODBC TRUE
27 OpenAir FALSE
28 PCIDSK TRUE
29 PDS FALSE
30 PGDump TRUE
31 PGeo FALSE
where FALSE means that the driver cannot write Pgeo files. It would be
helpful if you could try it out, which may well mean finding out how to
declare the Pgeo data source through ODBC or some such.
If you can find out how to use the driver, it may be simpler to go with
2.15 as Devel will become, most likely in April 2012, than try to build
using FWTools or OSGeo4W.
Hope this helps,
Roger