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go fmt cosine.go

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This commit is contained in:
FrozenKP 2017-04-07 21:28:56 +08:00
parent 8d0ce56382
commit 3a5e314911
1 changed files with 5 additions and 5 deletions
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10
metrics/pairwise/cosine.go
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@ -24,11 +24,11 @@ func (c *Cosine) Dot(vectorX *mat64.Dense, vectorY *mat64.Dense) float64 {
// Distance computes Cosine distance.
// It will return distance which represented as 1-cos() (ranged from 0 to 2).
func (c *Cosine) Distance(vectorX *mat64.Dense, vectorY *mat64.Dense) float64 {
dotXY := c.Dot(vectorX, vectorY)
lengthX := math.Sqrt(c.Dot(vectorX, vectorX))
lengthY := math.Sqrt(c.Dot(vectorY, vectorY))
dotXY := c.Dot(vectorX, vectorY)
lengthX := math.Sqrt(c.Dot(vectorX, vectorX))
lengthY := math.Sqrt(c.Dot(vectorY, vectorY))
cos := dotXY / (lengthX*lengthY)
cos := dotXY / (lengthX * lengthY)
return 1-cos
return 1 - cos
}