go-chart/matrix/vector.go

18 lines
344 B
Go

package matrix
// Vector is just an array of values.
type Vector []float64
// DotProduct returns the dot product of two vectors.
func (v Vector) DotProduct(v2 Vector) (result float64, err error) {
if len(v) != len(v2) {
err = ErrDimensionMismatch
return
}
for i := 0; i < len(v); i++ {
result = result + (v[i] * v2[i])
}
return
}