R GDAL Package

This is a package for R statistical software.  You need to install the Mac R framework and application, version 2.8, to use this.  And, of course, it needs the GDAL framework 1.6 and its dependencies.

You should install extra R packages in your home (user level), not the R framework, so first make sure to enable the 'Add ~/library/R..' option in the Startup Preferences of R.app.

If you have problems with the default CRAN mirror, use the R preferences to select a different mirror.  See the R website for a list of mirrors. <http://www.r-project.org/>


INSTALLATION

Before installing the GDAL package, you need one other package: 'sp'.  This can be easily installed with the R.app Package Installer from the CRAN binaries archive (or other mirror).  Make sure to use a User Level install, and check the "install dependencies" option.

Note: 'sp' is not the same as the 'spatial' package that is included in the Mac R framework.


Now you can install the GDAL package - in the Package Installer, select 'Local Binary Package' from the popup, the click 'Install...'.  Locate and select the rgdal tarball and Open it.  It is now installed and can be loaded and used in R.
