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  1.     final int num_lists = 3;
  2.     ArrayList<String> list_as[] = new ArrayList<String>[3];
  3.     for (int i = 0; i < num_lists; ++i)
  4.         list_as[i] = new ArrayList<String>();
  5.  
  6.     if (choice_needed)
  7.     {
  8.         best_attribute = choose_Attribute(examples, attributes);
  9.         node.setData(Integer.toString(best_attribute)); //not hm.get(best_attribute)
  10.         //create the children
  11.  
  12.         Node<String> childs[] = new Node<String>[num_lists];
  13.         for (int i = 0; i < num_lists; ++i)
  14.             childs[i] = new Node<String>(null);
  15.         for (int i = 0; i < num_lists; ++i)
  16.             node.setChild(childs[i]);
  17.  
  18.         //remove the best attribute
  19.         for (int i=0; i<attributes.size(); i++)
  20.         {   if (attributes.get(i)==best_attribute)
  21.             {   attributes.remove(i);
  22.             }
  23.         }
  24.  
  25.         //for each attribute type
  26.         for (int i=0; i<num_lists; i++)
  27.         {   //create separate lists for each example type
  28.             for (int j=0; j<num_examples; j++)
  29.             {   example = examples.get(j).split(",");
  30.                 int k = Integer.parseInt(example[best_attribute]);
  31.                 if (k < 0 || num_lists <= k)
  32.                     System.out.println("Something went wrong.");
  33.                 list_as[k].add(examples.get(j));
  34.             }
  35.  
  36.             DT_Learning(list_as[i], attributes, majority, childs[i]);
  37.         }
  38.         return node;
  39.     }
  40.  
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https://ideone.com/ptdm0o
language:
Java (12.0.1)
created:
10 years ago
visibility:
public

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