MultiGaussianState1D.h

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#ifndef MultiGaussianState1D_H_
#define MultiGaussianState1D_H_
 
#include "TrackingTools/GsfTools/interface/SingleGaussianState1D.h"
 
#include <vector>
 
class MultiGaussianState1D {
public:
  typedef std::vector<SingleGaussianState1D> SingleState1dContainer;
 
public:
  MultiGaussianState1D() : theCombinedStateUp2Date(false) {}
 
  MultiGaussianState1D(const SingleState1dContainer& stateV) : theComponents(stateV), theCombinedStateUp2Date(false) {}
 
  ~MultiGaussianState1D() {}
 
  double weight() const;
  double mean() const;
  double variance() const;
  const SingleState1dContainer& components() const { return theComponents; }
 
  // protected:
private:
  void checkCombinedState() const;
 
  // should become a vector of pointers to const SingleState
  const SingleState1dContainer theComponents;
  mutable SingleGaussianState1D theCombinedState;
  mutable bool theCombinedStateUp2Date;
};
 
#endif