func ExampleDistanceMatrix_TriangleInequality() {
d1 := cluster.DistanceMatrix{
{0, 13, 21, 22}, // true
{13, 0, 12, 13},
{21, 12, 0, 13},
{22, 13, 13, 0},
}
d2 := cluster.DistanceMatrix{
{0, 13, 21, math.NaN()}, // true
{13, 0, 12, 13},
{21, 12, 0, 13},
{22, 13, 13, 0},
}
d3 := cluster.DistanceMatrix{}
d4 := cluster.DistanceMatrix{
{0, 4, 6, 1}, // false
{4, 0, 3, 2},
{6, 3, 0, 5},
{1, 2, 5, 0},
}
fmt.Println(d1.TriangleInequality())
fmt.Println(d2.TriangleInequality())
fmt.Println(d3.TriangleInequality())
fmt.Println(d4.TriangleInequality())
// Output:
// true 0 0 0
// true 0 0 0
// true 0 0 0
// false 1 3 0
}
