Graph Components {spdep} | R Documentation |
n.comp.nb()
finds the number of disjoint connected subgraphs in the graph depicted by nb.obj
- a spatial neighbours list object.
n.comp.nb(nb.obj)
nb.obj |
a neighbours list object of class |
A list of:
nc |
number of disjoint connected subgraphs |
comp.id |
vector with the indices of the disjoint connected subgraphs that
the nodes in |
Nicholas Lewin-Koh nikko@hailmail.net
example(columbus) coords <- coordinates(columbus) plot(col.gal.nb, coords, col="grey") col2 <- droplinks(col.gal.nb, 21) plot(col2, coords, add=TRUE) res <- n.comp.nb(col2) table(res$comp.id) points(coords, col=res$comp.id, pch=16)