/home/sebastian/gpudbms/trunk/hype-library/include/plugins/statistical_methods/multi_dim_least_squares.hpp

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#pragma once

#include <iostream>
#include <string>
#include <vector>
#include <memory>

#include <core/statistical_method.hpp>
#include <core/time_measurement.hpp>

//alglib includes
#include <interpolation.h>

namespace hype{
        namespace core{

class Least_Squares_Method_2D : public StatisticalMethod_Internal {

public:
        Least_Squares_Method_2D(); 

        virtual const EstimatedTime computeEstimation(const Tuple& input_values);

        virtual bool recomuteApproximationFunction(Algorithm& algorithm);

        virtual bool inTrainingPhase() const throw();

        virtual void retrain();

        static StatisticalMethod_Internal* create(){
                return new Least_Squares_Method_2D();
        }

        virtual ~Least_Squares_Method_2D();

private:

                unsigned int degree_of_polynomial_;
                bool polynomial_computed_;
                alglib::real_1d_array objHeArray_;
};

        }; //end namespace core
}; //end namespace hype