[R-sig-Geo] overlay spatialgrid on spatial polygons data frame

[Agustin Lobo]

Thanks to both of you.
I was keeping the solution through rasterization as a fallback because the
involved
raster would be very large.
I'll try to solve the problem keeping the vectorial format (at least for the
polygons) using grass through spgrass6 and will report back.
Also, maybe an intersection using joinPolys() could be another solution.
A suboptimal solution would be a stratified random sample of points within
the grid.

Agus
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