Calculates an estimate of the G nearest neighbour distribution function.
Usage
Ghat(pts,s)
Value
A vector of the same length as s, containing the estimate of G at the
distances in s.
Arguments
pts
A points data set
s
A vector of distances at which to evaluate the G function
Details
The function Ghat(pts,s) is defined as the proportion of members of a
point set for which the distance to the nearest other member of the set
is less than or equal to s.
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.