work/git/mixpp/bdm/stat/emix.h

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#ifndef MX_H
#define MX_H

#include "libBM.h"
#include "libEF.h"
//#include <std>

using namespace itpp;

class emix : public epdf
{
        protected:
                vec w;
                Array<epdf*> Coms;
        public:
                emix ( RV &rv ) : epdf ( rv ) {};
                void set_parameters ( const vec &w, const Array<epdf*> &Coms );

                vec sample() const;
                vec mean() const
                {
                        int i; vec mu=zeros ( rv.count() );
                        for ( i=0;i<w.length();i++ ) {mu+=w ( i ) *Coms ( i )->mean(); }
                        return mu;
                }
                double evalpdflog ( const vec &val ) const
                {
                        int i;
                        double sum=0.0;
                        for ( i=0;i<w.length();i++ ) {sum+=w ( i ) *Coms ( i )->evalpdflog ( val );}
                        return log ( sum );
                };

//Access methods
                vec& _w() {return w;}
};

class eprod: public epdf
{
        protected:
                Array<epdf*> epdfs;
                Array<mpdf*> mpdfs;
                ivec sizes;
        public:
                eprod(Array<epdf> Facs){
                        for 
                };

};

class mmix : public mpdf
{
        protected:
                Array<mpdf*> Coms;
                emix Epdf;
        public:
                mmix ( RV &rv, RV &rvc ) : mpdf ( rv, rvc ), Epdf ( rv ) {ep=&Epdf;};
                void set_parameters ( const vec &w, const Array<mpdf*> &Coms )
                {
                        Array<epdf*> Eps ( Coms.length() );

                        for ( int i=0;i<Coms.length();i++ )
                        {
                                Eps ( i ) =& ( Coms ( i )->_epdf() );
                        }
                        Epdf.set_parameters ( w,Eps );
                };

                void condition ( const vec &cond )
                {
                        for ( int i=0;i<Coms.length();i++ ) {Coms ( i )->condition ( cond );}
                };
};
#endif //MX_H

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