[R-sig-Geo] Extract raster values from polygon overlaying - efficient alternative

[Besnard, Simon]

Hi all, 

I am currently extracting raster values using polygon overlaying. The raster file is a global product with a 30m resolution. 
In order to implement this task in a efficient way, I am looking at different options. I can imagine that the extract function from the raster package is an option but not very efficient. One could also work with spatial database. 
Therefore, I was wondering if any of you have an idea on how different approaches performed compare to each other to perform such task. e.g. raster::extract Vs. postgis using rpostgis Vs. other more lightweight alternative, such as spatialite. 

Thanks for your insights.

Simon. 

_______________________________________________
R-sig-Geo mailing list
R-sig-Geo at r-project.org
https://stat.ethz.ch/mailman/listinfo/r-sig-geo