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ECOCUtil.h
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1 /*
2  * This program is free software; you can redistribute it and/or modify
3  * it under the terms of the GNU General Public License as published by
4  * the Free Software Foundation; either version 3 of the License, or
5  * (at your option) any later version.
6  *
7  * Written (W) 2012 Chiyuan Zhang
8  * Copyright (C) 2012 Chiyuan Zhang
9  */
10 
11 #ifndef ECOCUTIL_H__
12 #define ECOCUTIL_H__
13 
14 #include <shogun/lib/config.h>
15 
17 
18 namespace shogun
19 {
20 
22 class CECOCUtil
23 {
24 public:
30  template<typename T1, typename T2>
31  static int32_t hamming_distance(T1 *c1, T2 *c2, int32_t len)
32  {
33  int32_t dist = 0;
34  for (int32_t i=0; i < len; ++i)
35  dist += static_cast<int32_t>(CMath::abs((c1[i]-c2[i])));
36  return dist/2;
37  }
38 };
39 
40 } /* shogun */
41 
42 #endif /* end of include guard: ECOCUTIL_H__ */
43 

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