dtw.h

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#pragma once
 
#include "warpPath.h"
#include "searchWindow.h"
 
#include <vector>
 
template<typename T>
class dtw
{
public:
  dtw();
  ~dtw();
 
  /* Calculates and returns a simple cost value between two input series */
  T getCost(const std::vector<std::vector<T>> &seriesX, const std::vector<std::vector<T > > &seriesY);
 
  /* Calculates both cost and the warp path */
  warpInfo<T> dynamicTimeWarp(const std::vector<std::vector<T> > &seriesX, const std::vector<std::vector<T> > &seriesY); //This returns everything, including a path
 
  /* Calculates both the cost and the warp path, with a given window as a constraint */
  warpInfo<T> constrainedDTW(const std::vector<std::vector<T> > &seriesX, const std::vector<std::vector<T> > &seriesY, searchWindow window); //This takes a window object
 
private:
  inline T distanceFunction(const std::vector<T> &pointX, const std::vector<T> &point);
  std::vector<std::vector<T> > costMatrix;
  warpPath calculatePath(std::size_t seriesXsize, std::size_t seriesYsize) const;
};