So, installing rgdal, which is an important R package for spatial data analysis can be a bit of a pain on the mac. Here are two ways to make it happen.   The Easy Way In R run: install.packages(‘rgdal’,repos=”http://www.stats.ox.ac.uk/pub/RWin“) The Hard Way Download and install GDAL 1.8 Complete and  PROJ framework v4.7.0-2   from: http://www.kyngchaos.com/software/frameworks%29 Download the latest version of rgdal from CRAN. … Continue reading Installing rgdal on a Mac