dynare/matlab/evaluate_static_model.m

75 lines
2.8 KiB
Matlab

function [residuals,check1,jacob] = evaluate_static_model(ys,exo_ss,params,M,options)
% function [residuals,check1,jacob] = evaluate_static_model(ys,exo_ss,params,M,options)
% Evaluates the static model
%
% INPUTS
% ys vector initial values used to compute the steady
% state
% exo_ss vector exogenous steady state
% params vector parameters
% M struct model structure
% options struct options
%
% OUTPUTS
% residuals vector residuals when ys is not
% the steady state
% check1 scalar error flag
% jacob matrix Jacobian of static model
%
% SPECIAL REQUIREMENTS
% none
% Copyright © 2001-2021 Dynare Team
%
% This file is part of Dynare.
%
% Dynare is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% Dynare is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with Dynare. If not, see <https://www.gnu.org/licenses/>.
check1 = 0;
if options.bytecode
if nargout<3
[residuals]= bytecode('evaluate','static',ys,...
exo_ss, params, ys, 1);
else
[residuals, junk]= bytecode('evaluate','static',ys,...
exo_ss, params, ys, 1);
jacob = junk.g1;
end
else
fh_static = str2func([M.fname '.static']);
if options.block
residuals = zeros(M.endo_nbr,1);
T = NaN(M.block_structure_stat.tmp_nbr, 1);
for b = 1:length(M.block_structure_stat.block)
[r, yy, T] = feval(fh_static,b,ys,exo_ss,params,T);
if M.block_structure_stat.block(b).Simulation_Type == 1 || ... % evaluateForward
M.block_structure_stat.block(b).Simulation_Type == 2 % evaluateBackward
vidx = M.block_structure_stat.block(b).variable;
r = yy(vidx) - ys(vidx);
end
residuals(M.block_structure_stat.block(b).equation) = r;
end
if nargout==3
jacob=NaN(length(ys));
end
else
if nargout<3
residuals = feval(fh_static,ys,exo_ss,params);
else
[residuals, jacob] = feval(fh_static,ys,exo_ss,params);
end
end
end