decision_tree_data_provider.h

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#pragma once
 
#include <pcl/common/common.h>
#include <pcl/memory.h>
#include <pcl/pcl_macros.h> // for PCL_EXPORTS
 
namespace pcl {
template <class FeatureType,
          class DataSet,
          class LabelType,
          class ExampleIndex,
          class NodeType>
class PCL_EXPORTS DecisionTreeTrainerDataProvider {
 
  /** The training data set. */
  DataSet data_set_;
  /** The label data. */
  std::vector<LabelType> label_data_;
 
public:
  using Ptr = shared_ptr<DecisionTreeTrainerDataProvider<FeatureType,
                                                         DataSet,
                                                         LabelType,
                                                         ExampleIndex,
                                                         NodeType>>;
  using ConstPtr = shared_ptr<const DecisionTreeTrainerDataProvider<FeatureType,
                                                                    DataSet,
                                                                    LabelType,
                                                                    ExampleIndex,
                                                                    NodeType>>;
 
  /** Constructor. */
  DecisionTreeTrainerDataProvider() {}
 
  /** Destructor. */
  ~DecisionTreeTrainerDataProvider() {}
 
  /** Virtual function called to obtain training examples and labels before
   *  training a specific tree */
  virtual void
  getDatasetAndLabels(DataSet& data_set,
                      std::vector<LabelType>& label_data,
                      std::vector<ExampleIndex>& examples) = 0;
};
 
} // namespace pcl