From 7d1705444541cea2524e83b3b2014f174e556245 Mon Sep 17 00:00:00 2001 From: sugarme Date: Wed, 13 Mar 2019 12:28:04 +1100 Subject: [PATCH] resolves #222 --- metrics/pairwise/euclidean.go | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/metrics/pairwise/euclidean.go b/metrics/pairwise/euclidean.go index a95cdba..deba3b0 100644 --- a/metrics/pairwise/euclidean.go +++ b/metrics/pairwise/euclidean.go @@ -14,7 +14,8 @@ func NewEuclidean() *Euclidean { // InnerProduct computes a Eucledian inner product. func (e *Euclidean) InnerProduct(vectorX *mat.Dense, vectorY *mat.Dense) float64 { - subVector := mat.NewDense(0, 0, nil) + subVector := mat.NewDense(1, 1, nil) + subVector.Reset() subVector.MulElem(vectorX, vectorY) result := mat.Sum(subVector) @@ -23,7 +24,8 @@ func (e *Euclidean) InnerProduct(vectorX *mat.Dense, vectorY *mat.Dense) float64 // Distance computes Euclidean distance (also known as L2 distance). func (e *Euclidean) Distance(vectorX *mat.Dense, vectorY *mat.Dense) float64 { - subVector := mat.NewDense(0, 0, nil) + subVector := mat.NewDense(1, 1, nil) + subVector.Reset() subVector.Sub(vectorX, vectorY) result := e.InnerProduct(subVector, subVector)