+++ /dev/null
-// 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 mat_test
-
-import (
- "fmt"
-
- "gonum.org/v1/gonum/mat"
-)
-
-func ExampleSymDense_SubsetSym() {
- n := 5
- s := mat.NewSymDense(5, nil)
- count := 1.0
- for i := 0; i < n; i++ {
- for j := i; j < n; j++ {
- s.SetSym(i, j, count)
- count++
- }
- }
- fmt.Println("Original matrix:")
- fmt.Printf("%0.4v\n\n", mat.Formatted(s))
-
- // Take the subset {0, 2, 4}
- var sub mat.SymDense
- sub.SubsetSym(s, []int{0, 2, 4})
- fmt.Println("Subset {0, 2, 4}")
- fmt.Printf("%0.4v\n\n", mat.Formatted(&sub))
-
- // Take the subset {0, 0, 4}
- sub.SubsetSym(s, []int{0, 0, 4})
- fmt.Println("Subset {0, 0, 4}")
- fmt.Printf("%0.4v\n\n", mat.Formatted(&sub))
-
- // Output:
- // Original matrix:
- // ⎡ 1 2 3 4 5⎤
- // ⎢ 2 6 7 8 9⎥
- // ⎢ 3 7 10 11 12⎥
- // ⎢ 4 8 11 13 14⎥
- // ⎣ 5 9 12 14 15⎦
- //
- // Subset {0, 2, 4}
- // ⎡ 1 3 5⎤
- // ⎢ 3 10 12⎥
- // ⎣ 5 12 15⎦
- //
- // Subset {0, 0, 4}
- // ⎡ 1 1 5⎤
- // ⎢ 1 1 5⎥
- // ⎣ 5 5 15⎦
-}