src/optimizer.h

/*
 *   See COPYING file distributed along with the psignifit package for
 *   the copyright and license terms
 */
#ifndef OPTIMIZER_H
#define OPTIMIZER_H

#include <vector>
#include "psychometric.h"
#include "data.h"

class PsiOptimizer
{
        private:
                // some variables for the internal processing of the optimization process
                int nparameters;                             // Number of parameters
                std::vector< std::vector<double> > simplex;  // data of the simplex
                std::vector<double> fx;                      // function values at the simplex nodes
                std::vector<double> x;                       // a single simplex node
                std::vector<double> xx;                      // another single simplex node
                std::vector<double> start;                   // starting values
                std::vector<bool>   modified;                // bookkeeping vector to indicate which simplex nodes have changed, i.e. which function values need to be updated
        public:
                PsiOptimizer (
                        const PsiPsychometric * model,           
                        const PsiData * data                     
                        ); 
                ~PsiOptimizer ( void );                                   
                std::vector<double> optimize (
                        const PsiPsychometric * model,           
                        const PsiData * data,                    
                        const std::vector<double>* startingvalue=NULL    
                        ); 
};

#endif