Thanos did someting

[bytom/vapor.git] / vendor / gonum.org / v1 / gonum / lapack / testlapack / dgeqr2.go

diff --git a/vendor/gonum.org/v1/gonum/lapack/testlapack/dgeqr2.go b/vendor/gonum.org/v1/gonum/lapack/testlapack/dgeqr2.go
deleted file mode 100644 (file)
index 999d263..0000000
--- a/vendor/gonum.org/v1/gonum/lapack/testlapack/dgeqr2.go
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright ©2015 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"
-       "gonum.org/v1/gonum/blas/blas64"
-       "gonum.org/v1/gonum/floats"
-)
-
-type Dgeqr2er interface {
-       Dgeqr2(m, n int, a []float64, lda int, tau []float64, work []float64)
-}
-
-func Dgeqr2Test(t *testing.T, impl Dgeqr2er) {
-       rnd := rand.New(rand.NewSource(1))
-       for c, test := range []struct {
-               m, n, lda int
-       }{
-               {1, 1, 0},
-               {2, 2, 0},
-               {3, 2, 0},
-               {2, 3, 0},
-               {1, 12, 0},
-               {2, 6, 0},
-               {3, 4, 0},
-               {4, 3, 0},
-               {6, 2, 0},
-               {12, 1, 0},
-               {1, 1, 20},
-               {2, 2, 20},
-               {3, 2, 20},
-               {2, 3, 20},
-               {1, 12, 20},
-               {2, 6, 20},
-               {3, 4, 20},
-               {4, 3, 20},
-               {6, 2, 20},
-               {12, 1, 20},
-       } {
-               n := test.n
-               m := test.m
-               lda := test.lda
-               if lda == 0 {
-                       lda = test.n
-               }
-               a := make([]float64, m*lda)
-               for i := range a {
-                       a[i] = rnd.Float64()
-               }
-               aCopy := make([]float64, len(a))
-               k := min(m, n)
-               tau := make([]float64, k)
-               for i := range tau {
-                       tau[i] = rnd.Float64()
-               }
-               work := make([]float64, n)
-               for i := range work {
-                       work[i] = rnd.Float64()
-               }
-               copy(aCopy, a)
-               impl.Dgeqr2(m, n, a, lda, tau, work)
-
-               // Test that the QR factorization has completed successfully. Compute
-               // Q based on the vectors.
-               q := constructQ("QR", m, n, a, lda, tau)
-
-               // Check that q is orthonormal
-               for i := 0; i < m; i++ {
-                       nrm := blas64.Nrm2(m, blas64.Vector{Inc: 1, Data: q.Data[i*m:]})
-                       if math.Abs(nrm-1) > 1e-14 {
-                               t.Errorf("Case %v, q not normal", c)
-                       }
-                       for j := 0; j < i; j++ {
-                               dot := blas64.Dot(m, blas64.Vector{Inc: 1, Data: q.Data[i*m:]}, blas64.Vector{Inc: 1, Data: q.Data[j*m:]})
-                               if math.Abs(dot) > 1e-14 {
-                                       t.Errorf("Case %v, q not orthogonal", c)
-                               }
-                       }
-               }
-               // Check that A = Q * R
-               r := blas64.General{
-                       Rows:   m,
-                       Cols:   n,
-                       Stride: n,
-                       Data:   make([]float64, m*n),
-               }
-               for i := 0; i < m; i++ {
-                       for j := i; j < n; j++ {
-                               r.Data[i*n+j] = a[i*lda+j]
-                       }
-               }
-               atmp := blas64.General{
-                       Rows:   m,
-                       Cols:   n,
-                       Stride: lda,
-                       Data:   make([]float64, m*lda),
-               }
-               copy(atmp.Data, a)
-               blas64.Gemm(blas.NoTrans, blas.NoTrans, 1, q, r, 0, atmp)
-               if !floats.EqualApprox(atmp.Data, aCopy, 1e-14) {
-                       t.Errorf("Q*R != a")
-               }
-       }
-}