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function oo_=make_ex_(M_,options_,oo_)
% forms oo_.exo_simul and oo_.exo_det_simul
%
% INPUTS
% M_: Dynare model structure
% options_: Dynare options structure
% oo_: Dynare results structure
%
% OUTPUTS
% oo_: Dynare results structure
%
% ALGORITHM
%
% SPECIAL REQUIREMENTS
%
% Copyright (C) 1996-2017 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 <http://www.gnu.org/licenses/>.
global ex0_
if isempty(oo_.exo_steady_state)
oo_.exo_steady_state = zeros(M_.exo_nbr,1);
end
if M_.exo_det_nbr > 1 && isempty(oo_.exo_det_steady_state)
oo_.exo_det_steady_state = zeros(M_.exo_det_nbr,1);
end
% Initialize oo_.exo_simul
if isempty(M_.exo_histval)
if isempty(ex0_)
oo_.exo_simul = repmat(oo_.exo_steady_state',M_.maximum_lag+options_.periods+M_.maximum_lead,1);
else
oo_.exo_simul = [ repmat(ex0_',M_.maximum_lag,1) ; repmat(oo_.exo_steady_state',options_.periods+M_.maximum_lead,1) ];
end
else
if isempty(ex0_)
oo_.exo_simul = [M_.exo_histval'; repmat(oo_.exo_steady_state',options_.periods+M_.maximum_lead,1)];
else
error('histval and endval cannot be used simultaneously')
end
end
% Initialize oo_.exo_det_simul
if M_.exo_det_nbr > 0
if isempty(M_.exo_det_histval)
oo_.exo_det_simul = repmat(oo_.exo_det_steady_state',M_.maximum_lag+options_.periods+M_.maximum_lead,1);
else
oo_.exo_det_simul = [M_.exo_det_histval'; repmat(oo_.exo_det_steady_state',options_.periods+M_.maximum_lead,1)];
end
end
% Add temporary shocks
if isfield(M_, 'det_shocks')
for i = 1:length(M_.det_shocks)
k = M_.det_shocks(i).periods + M_.maximum_lag;
ivar = M_.det_shocks(i).exo_id;
v = M_.det_shocks(i).value;
if ~M_.det_shocks(i).exo_det
if ~M_.det_shocks(i).multiplicative
oo_.exo_simul(k,ivar) = v;
else
oo_.exo_simul(k,ivar) = oo_.exo_simul(k,ivar) * v;
end
else
if ~M_.det_shocks(i).multiplicative
oo_.exo_det_simul(k,ivar) = v;
else
oo_.exo_det_simul(k,ivar) = oo_.exo_det_simul(k,ivar) * v;
end
end
end
end
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