NegativeLogLikelihoodRecorder.hpp

Go to the documentation of this file.

#ifndef HOPS_NEGATIVELOGLIKELIHOODRECORDER_HPP
#define HOPS_NEGATIVELOGLIKELIHOODRECORDER_HPP
 
#include "../../FileWriter/FileWriter.hpp"
#include "IsClearRecordsAvailable.hpp"
#include "IsInstallDataObjectAvailable.hpp"
#include "IsStoreRecordAvailable.hpp"
#include "IsWriteRecordsToFileAvailable.hpp"
#include "../../Utility/ChainData.hpp"
 
#include <memory>
#include <vector>
 
namespace hops {
    template<typename MarkovChainImpl>
    class NegativeLogLikelihoodRecorder : public MarkovChainImpl {
    public:
        explicit NegativeLogLikelihoodRecorder(const MarkovChainImpl &markovChainImpl) : MarkovChainImpl(markovChainImpl) {
            records = std::make_shared<std::vector<double>>();
        }
 
        void installDataObject(ChainData& chainData) {
            chainData.setNegativeLogLikelihood(records);
            if constexpr(IsInstallDataObjectAvailable<MarkovChainImpl>::value) {
                MarkovChainImpl::installDataObject(chainData);
            }
        }
 
        void writeRecordsToFile(const FileWriter *const fileWriter) const {
            fileWriter->write("negativeLogLikelihood", *records);
            if constexpr(IsWriteRecordsToFileAvailable<MarkovChainImpl>::value) {
                MarkovChainImpl::writeRecordsToFile(fileWriter);
            }
        }
 
        void storeRecord() {
            records->emplace_back(MarkovChainImpl::getNegativeLogLikelihoodOfCurrentState());
            if constexpr(IsStoreRecordAvailable<MarkovChainImpl>::value) {
                MarkovChainImpl::storeRecord();
            }
        }
 
        void clearRecords() {
            records->clear();
            if constexpr(IsClearRecordsAvailable<MarkovChainImpl>::value) {
                MarkovChainImpl::clearRecords();
            }
        }
 
    private:
        std::shared_ptr<std::vector<double>> records;
    };
}
 
#endif //HOPS_NEGATIVELOGLIKELIHOODRECORDER_HPP