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grants
2008 Feb 17
1
random location in polygons sp spsample splancs csr
Dear all,
I had to place points at random, one in each of larger number of
polygons (actually in objects of class 'SpatialPolygonsDataFrame' , see
sp library), and tried first to do it using spsample (from sp).
Surprisingly, every 5-15 trials, the output was a NULL value. The doc
says that ' this may occur when trying to hit a small and awkwardly
shaped polygon in a large