Method Cosine

wrapper/record.go:98–104

Cosine returns the cosine similarity between a vector and another.

(b *Record)

// Cosine returns the cosine similarity between a vector and another.
func (w *Record) Cosine(b *Record) float64 {
	cos := 0.0
	if den := w.Magnitude() * b.Magnitude(); den != 0.0 {
		cos = w.Dot(b) / den
	}
	return cos
}

// CosineSub returns the cosine similarity between a vector and another using up until the specificed number of elements.
func (w *Record) CosineSub(b *Record, elems uint) float64 {