work/git/mixpp/bdm/estim/merger.h

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#ifndef MER_H
#define MER_H

#include <itpp/itbase.h>
#include "mixef.h"

using namespace itpp;
using std::string;

class merger : public compositepdf, public epdf {
protected:
        MixEF Mix;
        int Ns;
        int Nc;
        double beta;
public:
        merger ( const Array<mpdf*> &S ) :
                        compositepdf ( S ), epdf ( getrv ( false ) ),
                        Mix ( Array<BMEF*> ( 0 ),vec ( 0 ) )
        {setindices(rv); beta=2.0; Ns=100; Nc=10;}
        void set_parameters ( double beta0, int Ns0, int Nc0 ) {        beta=beta0;Ns=Ns0;Nc=Nc0;}
        void init() {
                Array<vec> Smps ( n );
                //Gibbs sampling
                for ( int i=0;i<n;i++ ) {Smps ( i ) =zeros ( 0 );}
        }
        void merge ( const epdf* g0 );
        void merge () {merge ( & ( Mix._epdf() ) );};

        vec lognorm_merge ( mat &lW );
        vec sample ( )const { return Mix._epdf().sample();}
        double evalpdflog ( const vec &dt ) const{ vec dtf=zeros(dt.length()+1); dtf.set_subvector(0,dt); return Mix.logpred ( dtf );}
        vec mean()const {return Mix._epdf().mean();}
        virtual ~merger() {};
};



#endif // MER_H

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