[R-sig-Geo] calculate fraction of a polygon that is intersected by another polygon

[satishr]

Robert,
   Thanks for the information. I am also not sure whether rasterizing a
rectangular grid is good or not. I tried 'gIntersection' but got an error.
Anyway, here are the data sets. As you see the climate division file name
changed, so you may want to change the name in the code. 
Thanks,
Satish

1. Rectangular Gaussian Grid
http://r-sig-geo.2731867.n2.nabble.com/file/n7120086/GaussianPolygonExtendedCONUS.zip
GaussianPolygonExtendedCONUS.zip 


2. US climate divisions

http://r-sig-geo.2731867.n2.nabble.com/file/n7120086/US344ClimateDivisions.zip
US344ClimateDivisions.zip 



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