evidence.h

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/*  This file is part of libDAI - http://www.libdai.org/
 *
 *  Copyright (c) 2006-2011, The libDAI authors. All rights reserved.
 *
 *  Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
 */




#ifndef __defined_libdai_evidence_h
#define __defined_libdai_evidence_h


#include <istream>
#include <dai/daialg.h>


namespace dai {



class Evidence {
    public:
        typedef std::map<Var, size_t> Observation;

    private:
        std::vector<Observation> _samples;

    public:
        Evidence() : _samples() {}

        Evidence( std::vector<Observation> &samples ) : _samples(samples) {}


        void addEvidenceTabFile( std::istream& is, FactorGraph& fg );

        size_t nrSamples() const { return _samples.size(); }


        typedef std::vector<Observation>::iterator iterator;
        typedef std::vector<Observation>::const_iterator const_iterator;

        iterator begin() { return _samples.begin(); }
        const_iterator begin() const { return _samples.begin(); }
        iterator end() { return _samples.end(); }
        const_iterator end() const { return _samples.end(); }

    private:
        void addEvidenceTabFile( std::istream& is, std::map<std::string, Var> &varMap );
};


} // end of namespace dai


#endif