func ExampleDistanceMatrix_Additive() {
a := cluster.DistanceMatrix{
{0, 13, 21, 22},
{13, 0, 12, 13},
{21, 12, 0, 13},
{22, 13, 13, 0},
}
na := cluster.DistanceMatrix{
{0, 3, 4, 3},
{3, 0, 4, 5},
{4, 4, 0, 2},
{3, 5, 2, 0},
}
fmt.Println(a.Additive())
fmt.Println(na.Additive())
// Output:
// true 0 0 0 0
// false 3 1 0 2
}
