I want to install rgdal for \"R version 3.2.3 (2015-12-10)\".
I downloaded and installed
Quick note building on previous answer by @Stophface that might be useful to someone:
I did all steps listed above, but the rgdal installation in Terminal still gave me the error of configure: error: proj_api.h not found in standard or given locations. Yet (and without knowing exactly why), I managed to install it from R.app using pretty much the same specifications:
> install.packages('rgdal', type = "source", configure.args=c(
'--with-gdal-config=/Library/Frameworks/GDAL.framework/Programs/gdal-config',
'--with-proj-include=/Library/Frameworks/PROJ.framework/Headers',
'--with-proj-lib=/Library/Frameworks/PROJ.framework/unix/lib'))
And thanks again for your answer!