Absolute clustering ACL (contiguity with unit diagonal, or exp(-beta d)), and
with distances the relative clustering RCL and White's spatial proximity SP.
Usage
ClusteringIndex(x, contiguity = NULL, distance = NULL, beta = 1)
Arguments
- x
Units x groups count matrix.
- contiguity
Optional 0/1 contiguity matrix.
- distance
Optional distance matrix.
- beta
Decay rate.
Value
list(ACL, RCL, SP).
References
Massey, D. S. and Denton, N. A. (1988). Social Forces 67, 281-315.
White, M. J. (1983). The measurement of spatial segregation. American
Journal of Sociology 88, 1008-1018.
Examples
ClusteringIndex(rbind(c(4, 1), c(3, 2), c(1, 4), c(0, 5)),
contiguity = rbind(c(0, 1, 0, 0), c(1, 0, 1, 0), c(0, 1, 0, 1), c(0, 0, 1, 0)))$ACL
#> [1] 0.2666667 0.2666667
