SHOGUN: ECOCUtil.h Source File

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00001 /*
00002  * This program is free software; you can redistribute it and/or modify
00003  * it under the terms of the GNU General Public License as published by
00004  * the Free Software Foundation; either version 3 of the License, or
00005  * (at your option) any later version.
00006  *
00007  * Written (W) 2012 Chiyuan Zhang
00008  * Copyright (C) 2012 Chiyuan Zhang
00009  */
00010 
00011 #ifndef ECOCUTIL_H__
00012 #define ECOCUTIL_H__
00013 
00014 #include <shogun/mathematics/Math.h>
00015 
00016 namespace shogun
00017 {
00018 
00020 class CECOCUtil
00021 {
00022 public:
00028     template<typename T1, typename T2>
00029         static int32_t hamming_distance(T1 *c1, T2 *c2, int32_t len)
00030         {
00031             int32_t dist = 0;
00032             for (int32_t i=0; i < len; ++i)
00033                 dist += static_cast<int32_t>(CMath::abs((c1[i]-c2[i])));
00034             return dist/2;
00035         }
00036 };
00037 
00038 } /* shogun */
00039 
00040 #endif /* end of include guard: ECOCUTIL_H__ */
00041