Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / gonum.org / v1 / gonum / lapack / testlapack / dgelq2.go

diff --git a/vendor/gonum.org/v1/gonum/lapack/testlapack/dgelq2.go b/vendor/gonum.org/v1/gonum/lapack/testlapack/dgelq2.go
deleted file mode 100644 (file)
index 513f4bc..0000000
--- a/vendor/gonum.org/v1/gonum/lapack/testlapack/dgelq2.go
+++ /dev/null
@@ -1,114 +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 Dgelq2er interface {
-       Dgelq2(m, n int, a []float64, lda int, tau, work []float64)
-}
-
-func Dgelq2Test(t *testing.T, impl Dgelq2er) {
-       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},
-               {1, 12, 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},
-               {1, 12, 20},
-       } {
-               n := test.n
-               m := test.m
-               lda := test.lda
-               if lda == 0 {
-                       lda = test.n
-               }
-               k := min(m, n)
-               tau := make([]float64, k)
-               for i := range tau {
-                       tau[i] = rnd.Float64()
-               }
-               work := make([]float64, m)
-               for i := range work {
-                       work[i] = rnd.Float64()
-               }
-               a := make([]float64, m*lda)
-               for i := 0; i < m*lda; i++ {
-                       a[i] = rnd.Float64()
-               }
-               aCopy := make([]float64, len(a))
-               copy(aCopy, a)
-               impl.Dgelq2(m, n, a, lda, tau, work)
-
-               Q := constructQ("LQ", m, n, a, lda, tau)
-
-               // Check that Q is orthonormal
-               for i := 0; i < Q.Rows; i++ {
-                       nrm := blas64.Nrm2(Q.Cols, blas64.Vector{Inc: 1, Data: Q.Data[i*Q.Stride:]})
-                       if math.Abs(nrm-1) > 1e-14 {
-                               t.Errorf("Q not normal. Norm is %v", nrm)
-                       }
-                       for j := 0; j < i; j++ {
-                               dot := blas64.Dot(Q.Rows,
-                                       blas64.Vector{Inc: 1, Data: Q.Data[i*Q.Stride:]},
-                                       blas64.Vector{Inc: 1, Data: Q.Data[j*Q.Stride:]},
-                               )
-                               if math.Abs(dot) > 1e-14 {
-                                       t.Errorf("Q not orthogonal. Dot is %v", dot)
-                               }
-                       }
-               }
-
-               L := blas64.General{
-                       Rows:   m,
-                       Cols:   n,
-                       Stride: n,
-                       Data:   make([]float64, m*n),
-               }
-               for i := 0; i < m; i++ {
-                       for j := 0; j <= min(i, n-1); j++ {
-                               L.Data[i*L.Stride+j] = a[i*lda+j]
-                       }
-               }
-
-               ans := blas64.General{
-                       Rows:   m,
-                       Cols:   n,
-                       Stride: lda,
-                       Data:   make([]float64, m*lda),
-               }
-               copy(ans.Data, aCopy)
-               blas64.Gemm(blas.NoTrans, blas.NoTrans, 1, L, Q, 0, ans)
-               if !floats.EqualApprox(aCopy, ans.Data, 1e-14) {
-                       t.Errorf("Case %v, LQ mismatch. Want %v, got %v.", c, aCopy, ans.Data)
-               }
-       }
-}