[R-sig-Geo] inter-point distance calcs
Jim Bouldin
jrbouldin at ucdavis.edu
Mon Aug 10 20:50:43 CEST 2009
Last message got truncated somehow. To repeat, I forgot to mention that I
need to get the distances into the following format. Using Dylan's example
above:
Point Pair Distance
1-2 3.6
1-3 6.4
1-4 9.2
. .
. .
3-4 .
3-4 .
4-5 3.2
That is, I need to be able to create a column vector that labels each pair
of points, which I can then cbin with the distance vector into a new matrix
(I know how to create the distance vector, but not the identifier vector).
The point pair identifiers (labels) will come from a column in the
original data matrix.
Thanks
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