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source: branches/ParameterBinding/HeuristicLab.Problems.DataAnalysis/3.3/MatrixExtensions.cs @ 6481

Last change on this file since 6481 was 4068, checked in by swagner, 14 years ago

Sorted usings and removed unused usings in entire solution (#1094)

File size: 1.7 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23
24namespace HeuristicLab.Problems.DataAnalysis {
25  public static class MatrixExtensions<T> {
26    public static T[,] Create(T[] first, T[] second) {
27      if (first.Length != second.Length)
28        throw new ArgumentException("Both arrays must be of same length.");
29      T[,] array = new T[first.Length, 2];
30      for (int i = 0; i < first.Length; i++) {
31        array[i, 0] = first[i];
32        array[i, 1] = second[i];
33      }
34      return array;
35    }
36
37    public static T[] GetColumn(T[,] matrix, int column) {
38      if (column >= matrix.GetLength(1)) throw new ArgumentException("Invalid column index: " + column + ". Matrix has only " + matrix.GetLength(1) + " columns.");
39      T[] result = new T[matrix.GetLength(0)];
40      for (int i = 0; i < result.Length; i++) {
41        result[i] = matrix[i, column];
42      }
43      return result;
44    }
45  }
46}
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