func ExampleDistanceMatrix_NeighborJoin() {
d := cluster.DistanceMatrix{
{0, 23, 27, 20},
{23, 0, 30, 28},
{27, 30, 0, 30},
{20, 28, 30, 0},
}
tree, wt := d.NeighborJoin()
fmt.Println("n1 n2 weight")
for n, to := range tree.LabeledAdjacencyList {
for _, h := range to {
fmt.Printf("%d %2d %6.3f\n", n, h.To, wt[h.Label])
}
}
// Output:
// n1 n2 weight
// 0 5 8.000
// 1 4 13.500
// 2 4 16.500
// 3 5 12.000
// 4 5 2.000
// 4 1 13.500
// 4 2 16.500
// 5 3 12.000
// 5 0 8.000
// 5 4 2.000
}
