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choose criterion 2011

/ Published in: C#
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older version of and id3/c45 classifier

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  1. protected int GetNextCriterion(Table table)
  2.         {
  3.             Dictionary<_NodeCriterionInfo, int> filter = GetFilter();
  4.             Table rest = table.Filter(filter);
  5.  
  6.             List<double> infos = new List<double>();
  7.  
  8.             int i;
  9.  
  10.             for (i = 0; i < rest.Criteria.Count - 1; i++)
  11.                 infos.Add(rest.Infos(i));
  12.  
  13.  
  14.  
  15.             for (i = 0; i < rest.Criteria.Count - 1; i++)
  16.             {
  17.                 bool containsKey = false;
  18.                 foreach (KeyValuePair<_NodeCriterionInfo,int> kvp in filter)
  19.                     if (kvp.Key.Index == i)
  20.                     {
  21.                         containsKey = true;
  22.                         break;
  23.                     }
  24.                 if (
  25.                     !containsKey
  26.                     ) break;
  27.             }
  28.  
  29.  
  30.  
  31.             int iMin = i;
  32.             double min = infos[iMin];
  33.  
  34.  
  35.             for (i = iMin; i < rest.Criteria.Count - 1; i++)
  36.             {
  37.                 bool containsKey = false;
  38.                 foreach (KeyValuePair<_NodeCriterionInfo, int> kvp in filter)
  39.                     if (kvp.Key.Index == i)
  40.                     {
  41.                         containsKey = true;
  42.                         break;
  43.                     }
  44.                 if (
  45.                     containsKey
  46.                     ) continue;
  47.  
  48.                 if (infos[i] < min)
  49.                 {
  50.                     min = infos[i];
  51.                     iMin = i;
  52.                 }
  53.             }
  54.  
  55.  
  56.             return iMin;
  57.         }

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