Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / gonum.org / v1 / gonum / lapack / testlapack / dorg2l.go

diff --git a/vendor/gonum.org/v1/gonum/lapack/testlapack/dorg2l.go b/vendor/gonum.org/v1/gonum/lapack/testlapack/dorg2l.go
deleted file mode 100644 (file)
index 0558b96..0000000
--- a/vendor/gonum.org/v1/gonum/lapack/testlapack/dorg2l.go
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright ©2016 The Gonum Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package testlapack
-
-import (
-       "math"
-       "testing"
-
-       "golang.org/x/exp/rand"
-
-       "gonum.org/v1/gonum/blas/blas64"
-)
-
-type Dorg2ler interface {
-       Dorg2l(m, n, k int, a []float64, lda int, tau, work []float64)
-       Dgeql2er
-}
-
-func Dorg2lTest(t *testing.T, impl Dorg2ler) {
-       rnd := rand.New(rand.NewSource(1))
-       for _, test := range []struct {
-               m, n, k, lda int
-       }{
-               {5, 4, 3, 0},
-               {5, 4, 4, 0},
-               {3, 3, 2, 0},
-               {5, 5, 5, 0},
-       } {
-               m := test.m
-               n := test.n
-               k := test.k
-               lda := test.lda
-               if lda == 0 {
-                       lda = n
-               }
-
-               a := make([]float64, m*lda)
-               for i := range a {
-                       a[i] = rnd.NormFloat64()
-               }
-               tau := nanSlice(max(m, n))
-               work := make([]float64, n)
-               impl.Dgeql2(m, n, a, lda, tau, work)
-
-               aCopy := make([]float64, len(a))
-               copy(aCopy, a)
-               impl.Dorg2l(m, n, k, a, lda, tau[n-k:], work)
-               if !hasOrthonormalColumns(m, n, a, lda) {
-                       t.Errorf("Q is not orthonormal. m = %v, n = %v, k = %v", m, n, k)
-               }
-       }
-}
-
-// hasOrthornormalColumns checks that the columns of a are orthonormal.
-func hasOrthonormalColumns(m, n int, a []float64, lda int) bool {
-       for i := 0; i < n; i++ {
-               for j := i; j < n; j++ {
-                       dot := blas64.Dot(m,
-                               blas64.Vector{Inc: lda, Data: a[i:]},
-                               blas64.Vector{Inc: lda, Data: a[j:]},
-                       )
-                       if i == j {
-                               if math.Abs(dot-1) > 1e-10 {
-                                       return false
-                               }
-                       } else {
-                               if math.Abs(dot) > 1e-10 {
-                                       return false
-                               }
-                       }
-               }
-       }
-       return true
-}