320 lines
9.4 KiB
C++
320 lines
9.4 KiB
C++
/*
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* Copyright (C) 2003-2009 Dynare Team
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*
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* This file is part of Dynare.
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*
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* Dynare is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Dynare is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Dynare. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <cstdlib>
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#include "NumericalInitialization.hh"
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InitParamStatement::InitParamStatement(int symb_id_arg,
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const NodeID param_value_arg,
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const SymbolTable &symbol_table_arg) :
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symb_id(symb_id_arg),
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param_value(param_value_arg),
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symbol_table(symbol_table_arg)
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{
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}
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void
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InitParamStatement::writeOutput(ostream &output, const string &basename) const
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{
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int id = symbol_table.getTypeSpecificID(symb_id) + 1;
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output << "M_.params( " << id << " ) = ";
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param_value->writeOutput(output);
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output << ";" << endl;
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output << symbol_table.getName(symb_id) << " = M_.params( " << id << " );\n";
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}
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void
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InitParamStatement::fillEvalContext(eval_context_type &eval_context) const
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{
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try
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{
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eval_context[symb_id] = param_value->eval(eval_context);
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}
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catch(ExprNode::EvalException &e)
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{
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// Do nothing
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}
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}
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InitOrEndValStatement::InitOrEndValStatement(const init_values_type &init_values_arg,
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const SymbolTable &symbol_table_arg) :
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init_values(init_values_arg),
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symbol_table(symbol_table_arg)
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{
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}
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void
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InitOrEndValStatement::fillEvalContext(eval_context_type &eval_context) const
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{
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for(init_values_type::const_iterator it = init_values.begin();
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it != init_values.end(); it++)
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{
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try
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{
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eval_context[it->first] = (it->second)->eval(eval_context);
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}
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catch(ExprNode::EvalException &e)
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{
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// Do nothing
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}
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}
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}
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void
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InitOrEndValStatement::writeInitValues(ostream &output) const
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{
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for(init_values_type::const_iterator it = init_values.begin();
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it != init_values.end(); it++)
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{
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const int symb_id = it->first;
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const NodeID expression = it->second;
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SymbolType type = symbol_table.getType(symb_id);
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int tsid = symbol_table.getTypeSpecificID(symb_id) + 1;
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if (type == eEndogenous)
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output << "oo_.steady_state";
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else if (type == eExogenous)
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output << "oo_.exo_steady_state";
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else if (type == eExogenousDet)
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output << "oo_.exo_det_steady_state";
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output << "( " << tsid << " ) = ";
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expression->writeOutput(output);
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output << ";" << endl;
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}
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}
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InitValStatement::InitValStatement(const init_values_type &init_values_arg,
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const SymbolTable &symbol_table_arg) :
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InitOrEndValStatement(init_values_arg, symbol_table_arg)
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{
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}
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void
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InitValStatement::writeOutput(ostream &output, const string &basename) const
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{
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output << "%" << endl
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<< "% INITVAL instructions" << endl
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<< "%" << endl;
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// Writing initval block to set initial values for variables
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output << "options_.initval_file = 0;" << endl;
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writeInitValues(output);
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output << "oo_.endo_simul=[oo_.steady_state*ones(1,M_.maximum_lag)];\n";
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output << "if M_.exo_nbr > 0;\n";
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output << "\too_.exo_simul = [ones(M_.maximum_lag,1)*oo_.exo_steady_state'];\n";
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output <<"end;\n";
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output << "if M_.exo_det_nbr > 0;\n";
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output << "\too_.exo_det_simul = [ones(M_.maximum_lag,1)*oo_.exo_det_steady_state'];\n";
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output <<"end;\n";
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}
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EndValStatement::EndValStatement(const init_values_type &init_values_arg,
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const SymbolTable &symbol_table_arg) :
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InitOrEndValStatement(init_values_arg, symbol_table_arg)
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{
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}
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void
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EndValStatement::writeOutput(ostream &output, const string &basename) const
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{
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output << "%" << endl
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<< "% ENDVAL instructions" << endl
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<< "%" << endl;
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// Writing endval block to set terminal values for variables
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output << "ys0_= oo_.steady_state;" << endl
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<< "ex0_ = oo_.exo_steady_state;" << endl;
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writeInitValues(output);
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}
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HistValStatement::HistValStatement(const hist_values_type &hist_values_arg,
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const SymbolTable &symbol_table_arg) :
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hist_values(hist_values_arg),
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symbol_table(symbol_table_arg)
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{
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}
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void
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HistValStatement::writeOutput(ostream &output, const string &basename) const
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{
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output << "%" << endl
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<< "% HISTVAL instructions" << endl
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<< "%" << endl;
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for(hist_values_type::const_iterator it = hist_values.begin();
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it != hist_values.end(); it++)
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{
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const int &symb_id = it->first.first;
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const int &lag = it->first.second;
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const NodeID expression = it->second;
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SymbolType type = symbol_table.getType(symb_id);
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int tsid = symbol_table.getTypeSpecificID(symb_id) + 1;
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if (type == eEndogenous)
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output << "oo_.endo_simul( " << tsid << ", M_.maximum_lag + " << lag << ") = ";
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else if (type == eExogenous)
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output << "oo_.exo_simul( M_.maximum_lag + " << lag << ", " << tsid << " ) = ";
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else if (type != eExogenousDet)
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output << "oo_.exo_det_simul( M_.maximum_lag + " << lag << ", " << tsid << " ) = ";
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expression->writeOutput(output);
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output << ";" << endl;
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}
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}
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InitvalFileStatement::InitvalFileStatement(const string &filename_arg) :
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filename(filename_arg)
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{
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}
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void
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InitvalFileStatement::writeOutput(ostream &output, const string &basename) const
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{
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output << "%" << endl
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<< "% INITVAL_FILE statement" << endl
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<< "%" << endl
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<< "options_.initval_file = 1;" << endl
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<< "initvalf('" << filename << "');" << endl;
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}
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HomotopyStatement::HomotopyStatement(const homotopy_values_type &homotopy_values_arg,
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const SymbolTable &symbol_table_arg) :
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homotopy_values(homotopy_values_arg),
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symbol_table(symbol_table_arg)
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{
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}
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void
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HomotopyStatement::writeOutput(ostream &output, const string &basename) const
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{
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output << "%" << endl
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<< "% HOMOTOPY_SETUP instructions" << endl
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<< "%" << endl
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<< "options_.homotopy_values = [];" << endl;
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for(homotopy_values_type::const_iterator it = homotopy_values.begin();
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it != homotopy_values.end(); it++)
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{
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const int &symb_id = it->first;
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const NodeID expression1 = it->second.first;
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const NodeID expression2 = it->second.second;
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const SymbolType type = symbol_table.getType(symb_id);
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const int tsid = symbol_table.getTypeSpecificID(symb_id) + 1;
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output << "options_.homotopy_values = vertcat(options_.homotopy_values, [ " << type << ", " << tsid << ", ";
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if (expression1 != NULL)
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expression1->writeOutput(output);
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else
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output << "NaN";
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output << ", ";
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expression2->writeOutput(output);
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output << "]);" << endl;
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}
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}
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SaveParamsAndSteadyStateStatement::SaveParamsAndSteadyStateStatement(const string &filename_arg) :
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filename(filename_arg)
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{
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}
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void
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SaveParamsAndSteadyStateStatement::writeOutput(ostream &output, const string &basename) const
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{
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output << "save_params_and_steady_state('" << filename << "');" << endl;
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}
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LoadParamsAndSteadyStateStatement::LoadParamsAndSteadyStateStatement(const string &filename,
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const SymbolTable &symbol_table_arg) :
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symbol_table(symbol_table_arg)
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{
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cout << "Reading " << filename << " ...";
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ifstream f;
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f.open(filename.c_str(), ios::in);
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if (f.bad())
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{
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cerr << "ERROR: Can't open " << filename << endl;
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exit(EXIT_FAILURE);
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}
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while(true)
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{
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string symb_name, value;
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f >> symb_name >> value;
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if (f.eof())
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break;
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try
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{
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int symb_id = symbol_table.getID(symb_name);
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content[symb_id] = value;
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}
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catch(SymbolTable::UnknownSymbolNameException &e)
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{
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cerr << "WARNING: Unknown symbol " << symb_name << " in " << filename << endl;
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}
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}
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}
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void
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LoadParamsAndSteadyStateStatement::writeOutput(ostream &output, const string &basename) const
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{
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for(map<int, string>::const_iterator it = content.begin();
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it != content.end(); it++)
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{
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switch(symbol_table.getType(it->first))
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{
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case eParameter:
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output << "M_.params";
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break;
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case eEndogenous:
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output << "oo_.steady_state";
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break;
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case eExogenous:
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output << "oo_.exo_steady_state";
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break;
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case eExogenousDet:
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output << "oo_.exo_det_steady_state";
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break;
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default:
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cerr << "ERROR: Unsupported variable type for " << symbol_table.getName(it->first) << " in load_params_and_steady_state" << endl;
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exit(EXIT_FAILURE);
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}
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int tsid = symbol_table.getTypeSpecificID(it->first) + 1;
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output << "(" << tsid << ") = " << it->second << ";" << endl;
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}
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}
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void
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LoadParamsAndSteadyStateStatement::fillEvalContext(eval_context_type &eval_context) const
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{
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for(map<int, string>::const_iterator it = content.begin();
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it != content.end(); it++)
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eval_context[it->first] = atof(it->second.c_str());
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}
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