Minimal Spanning Tree
Minimal Spanning Tree
mstree(xdist, ngmax = 1)
xdist |
an object of class |
ngmax |
a component number (default=1). Select 1 for getting classical MST. To add n supplementary edges k times: select k+1. |
returns an object of class neig
Daniel Chessel
data(mafragh)
maf.coa <- dudi.coa(mafragh$flo, scan = FALSE)
maf.mst <- ade4::mstree(dist.dudi(maf.coa), 1)
if(adegraphicsLoaded()) {
g0 <- s.label(maf.coa$li, plab.cex = 0, ppoints.cex = 2, nb = neig2nb(maf.mst))
} else {
s.label(maf.coa$li, clab = 0, cpoi = 2, neig = maf.mst, cnei = 1)
}
xy <- data.frame(x = runif(20), y = runif(20))
if(adegraphicsLoaded()) {
g1 <- s.label(xy, xlim = c(0, 1), ylim = c(0, 1),
nb = neig2nb(ade4::mstree(dist.quant(xy, 1), 1)), plot = FALSE)
g2 <- s.label(xy, xlim = c(0, 1), ylim = c(0, 1),
nb = neig2nb(ade4::mstree(dist.quant(xy, 1), 2)), plot = FALSE)
g3 <- s.label(xy, xlim = c(0, 1), ylim = c(0, 1),
nb = neig2nb(ade4::mstree(dist.quant(xy, 1), 3)), plot = FALSE)
g4 <- s.label(xy, xlim = c(0, 1), ylim = c(0, 1),
nb = neig2nb(ade4::mstree(dist.quant(xy, 1), 4)), plot = FALSE)
G <- ADEgS(list(g1, g2, g3, g4), layout = c(2, 2))
} else {
par(mfrow = c(2, 2))
for(k in 1:4) {
neig <- mstree(dist.quant(xy, 1), k)
s.label(xy, xlim = c(0, 1), ylim = c(0, 1), addax = FALSE, neig = neig)
}
}Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.