init delete the pow related (#55)

[bytom/vapor.git] / vendor / gonum.org / v1 / gonum / mat / gsvd_example_test.go

diff --git a/vendor/gonum.org/v1/gonum/mat/gsvd_example_test.go b/vendor/gonum.org/v1/gonum/mat/gsvd_example_test.go
deleted file mode 100644 (file)
index 4aad56d..0000000
--- a/vendor/gonum.org/v1/gonum/mat/gsvd_example_test.go
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright ©2017 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 mat_test
-
-import (
-       "fmt"
-       "log"
-       "math"
-
-       "gonum.org/v1/gonum/mat"
-)
-
-func ExampleGSVD() {
-       // Perform a GSVD factorization on food production/consumption data for the
-       // three years 1990, 2000 and 2014, for Africa and Latin America/Caribbean.
-       //
-       // See Lee et al. doi:10.1371/journal.pone.0030098 and
-       // Alter at al. doi:10.1073/pnas.0530258100 for more details.
-       var gsvd mat.GSVD
-       ok := gsvd.Factorize(FAO.Africa, FAO.LatinAmericaCaribbean, mat.GSVDU|mat.GSVDV|mat.GSVDQ)
-       if !ok {
-               log.Fatal("GSVD factorization failed")
-       }
-
-       u := gsvd.UTo(nil)
-       v := gsvd.VTo(nil)
-
-       s1 := gsvd.ValuesA(nil)
-       s2 := gsvd.ValuesB(nil)
-
-       fmt.Printf("Africa\n\ts1 = %.4f\n\n\tU = %.4f\n\n",
-               s1, mat.Formatted(u, mat.Prefix("\t    "), mat.Excerpt(2)))
-       fmt.Printf("Latin America/Caribbean\n\ts2 = %.4f\n\n\tV = %.4f\n",
-               s2, mat.Formatted(v, mat.Prefix("\t    "), mat.Excerpt(2)))
-
-       var q mat.Dense
-       q.Mul(gsvd.ZeroRTo(nil), gsvd.QTo(nil))
-       fmt.Printf("\nCommon basis vectors\n\n\tQ^T = %.4f\n",
-               mat.Formatted(q.T(), mat.Prefix("\t      ")))
-
-       // Calculate the antisymmetric angular distances for each eigenvariable.
-       fmt.Println("\nSignificance:")
-       for i := 0; i < 3; i++ {
-               fmt.Printf("\teigenvar_%d: %+.4f\n", i, math.Atan(s1[i]/s2[i])-math.Pi/4)
-       }
-
-       // Output:
-       //
-       // Africa
-       //      s1 = [1.0000 0.9344 0.5118]
-       //
-       //      U = Dims(21, 21)
-       //          ⎡-0.0005   0.0142  ...  ...  -0.0060  -0.0055⎤
-       //          ⎢-0.0010   0.0019             0.0071   0.0075⎥
-       //           .
-       //           .
-       //           .
-       //          ⎢-0.0007  -0.0024             0.9999  -0.0001⎥
-       //          ⎣-0.0010  -0.0016  ...  ...  -0.0001   0.9999⎦
-       //
-       // Latin America/Caribbean
-       //      s2 = [0.0047 0.3563 0.8591]
-       //
-       //      V = Dims(14, 14)
-       //          ⎡ 0.1362   0.0008  ...  ...   0.0700   0.2636⎤
-       //          ⎢ 0.1830  -0.0040             0.2908   0.7834⎥
-       //           .
-       //           .
-       //           .
-       //          ⎢-0.2598  -0.0324             0.9339  -0.2170⎥
-       //          ⎣-0.8386   0.1494  ...  ...  -0.1639   0.4121⎦
-       //
-       // Common basis vectors
-       //
-       //      Q^T = ⎡ -8172.4084   -4524.2933    4813.9616⎤
-       //            ⎢ 22581.8020   12397.1070  -16364.8933⎥
-       //            ⎣ -8910.8462  -10902.1488   15762.8719⎦
-       //
-       // Significance:
-       //      eigenvar_0: +0.7807
-       //      eigenvar_1: +0.4211
-       //      eigenvar_2: -0.2482
-}