[R-sig-Geo] Shapefile to raster and crop a raster (error)

[Robert Hijmans]

Manuel, 

> bio1ai <- crop(bio1, ai) 
> Error in intersectExtent(x, y) : Invalid extent 

This somewhat cryptic error message means that the extent of y does not
overlap with the extent of x. Hence y cannot be used to crop x. 

extent(bio1)
extent(ai)

Perhaps this happens because bio1 is in lon/lat while ai is in UTM or
another projection. 

Robert



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