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change mat64.Vec to []float64

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Jonathan J Lawlor
2014-12-02 20:47:56 -05:00
parent 2121128140
commit 0d3fcca1eb
2 changed files with 4 additions and 4 deletions
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4
covariancematrix.go
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@@ -18,7 +18,7 @@ import (
// data matrix x. cov should be a square matrix with the same number of
// columns as the input data matrix x, or if it is nil then a new Dense
// matrix will be constructed.
func CovarianceMatrix(cov *mat64.Dense, x mat64.Matrix, wts mat64.Vec) *mat64.Dense {
func CovarianceMatrix(cov *mat64.Dense, x mat64.Matrix, wts []float64) *mat64.Dense {
// matrix version of the two pass algorithm. This doesn't use
// the correction found in the Covariance and Variance functions.
@@ -50,7 +50,7 @@ func CovarianceMatrix(cov *mat64.Dense, x mat64.Matrix, wts mat64.Vec) *mat64.De
// normalization factor, typical n-1
var N float64
if wts != nil {
if wr, _ := wts.Dims(); wr != r {
if wr := len(wts); wr != r {
panic("weight vector length mismatch")
}