second derivatives of model equations w.r.t. parameters.
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b291f4fcf7
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eb4efa59ac
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@ -2644,6 +2644,19 @@ DynamicModel::computeParamsDerivatives()
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residuals_params_derivatives[make_pair(eq, param)] = d1;
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}
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for (first_derivatives_type::const_iterator it2 = residuals_params_derivatives.begin();
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it2 != residuals_params_derivatives.end(); it2++)
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{
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int eq = it2->first.first;
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int param1 = it2->first.second;
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NodeID d1 = it2->second;
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NodeID d2 = d1->getDerivative(param);
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if (d2 == Zero)
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continue;
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residuals_params_second_derivatives[make_pair(eq, make_pair(param1, param))] = d2;
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}
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for (first_derivatives_type::const_iterator it2 = first_derivatives.begin();
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it2 != first_derivatives.end(); it2++)
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{
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@ -2706,6 +2719,7 @@ void
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DynamicModel::writeParamsDerivativesFile(const string &basename) const
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{
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if (!residuals_params_derivatives.size()
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&& !residuals_params_second_derivatives.size()
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&& !jacobian_params_derivatives.size()
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&& !jacobian_params_second_derivatives.size()
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&& !hessian_params_derivatives.size())
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@ -2720,7 +2734,7 @@ DynamicModel::writeParamsDerivativesFile(const string &basename) const
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cerr << "ERROR: Can't open file " << filename << " for writing" << endl;
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exit(EXIT_FAILURE);
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}
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paramsDerivsFile << "function [rp, gp, gpp, hp] = " << basename << "_params_derivs(y, x, params, it_)" << endl
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paramsDerivsFile << "function [rp, rpp, gp, gpp, hp] = " << basename << "_params_derivs(y, x, params, it_)" << endl
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<< "%" << endl
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<< "% Warning : this file is generated automatically by Dynare" << endl
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<< "% from model file (.mod)" << endl << endl;
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@ -2745,6 +2759,26 @@ DynamicModel::writeParamsDerivativesFile(const string &basename) const
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paramsDerivsFile << ";" << endl;
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}
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// Write parameter second derivatives
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paramsDerivsFile << "rpp = zeros(" << equation_number() << ", " << symbol_table.param_nbr() << ", "
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<< symbol_table.param_nbr() << ");" << endl;
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for (second_derivatives_type::const_iterator it = residuals_params_second_derivatives.begin();
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it != residuals_params_second_derivatives.end(); it++)
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{
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int eq = it->first.first;
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int param1 = it->first.second.first;
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int param2 = it->first.second.second;
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NodeID d2 = it->second;
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int param1_col = symbol_table.getTypeSpecificID(getSymbIDByDerivID(param1)) + 1;
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int param2_col = symbol_table.getTypeSpecificID(getSymbIDByDerivID(param2)) + 1;
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paramsDerivsFile << "rpp(" << eq+1 << ", " << param1_col << ", " << param2_col << ") = ";
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d2->writeOutput(paramsDerivsFile, oMatlabDynamicModel, params_derivs_temporary_terms);
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paramsDerivsFile << ";" << endl;
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}
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// Write jacobian derivatives
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paramsDerivsFile << "gp = zeros(" << equation_number() << ", " << dynJacobianColsNbr << ", "
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<< symbol_table.param_nbr() << ");" << endl;
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@ -64,6 +64,13 @@ private:
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*/
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first_derivatives_type residuals_params_derivatives;
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//! Second derivatives of the residuals w.r. to parameters
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/*! First index is equation number, second and third indeces are parameters.
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Only non-null derivatives are stored in the map.
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Parameter indices are those of the getDerivID() method.
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*/
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second_derivatives_type residuals_params_second_derivatives;
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//! Derivatives of the jacobian w.r. to parameters
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/*! First index is equation number, second is endo/exo/exo_det variable, and third is parameter.
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Only non-null derivatives are stored in the map.
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