Calculate nearest neighbours for two point patterns
Usage
n2dist(pts1,pts2)
Value
Returns a list with components $dists and $neighs.
$dists[i] is the distance
of the nearest neighbour of point pts2[i,]
in pts1 and $neighs[i]
is the index in pts1 of the point nearest to pts2[i,]. Documentation and example by Alun Pope, 2007-08-23.
Arguments
pts1,pts2
Point data sets
References
Rowlingson, B. and Diggle, P. 1993 Splancs: spatial point pattern analysis
code in S-Plus. Computers and Geosciences, 19, 627-655;
the original sources can be accessed at:
https://www.maths.lancs.ac.uk/~rowlings/Splancs/. See also Bivand, R. and
Gebhardt, A. 2000 Implementing functions for spatial statistical analysis
using the R language. Journal of Geographical Systems, 2, 307-317.