SHOGUN  v1.1.0
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MeanSquaredError.cpp
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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) 2011 Sergey Lisitsyn
8  * Copyright (C) 2011 Berlin Institute of Technology and Max-Planck-Society
9  */
10 
12 #include <shogun/features/Labels.h>
14 
15 using namespace shogun;
16 
18 {
19  ASSERT(predicted->get_num_labels() == ground_truth->get_num_labels());
20  int32_t length = predicted->get_num_labels();
21  float64_t mse = 0.0;
22  for (int32_t i=0; i<length; i++)
23  mse += CMath::sq(predicted->get_label(i) - ground_truth->get_label(i));
24  mse /= length;
25  return mse;
26 }

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