[R-sig-Geo] How extract multiple points from a buffer created from the same points?

[GD]

I'm not 100% sure what you mean -- but it sounds like could try running
'spDists' on the tree's coordinates, which will return a distance matrix for
the trees (i.e. all pairwise distances). Then for each row, you could find
the indices which are < your distance threshold -- this should tell you the
neighbours of each tree. 



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