Added a cherry-pick routine.

Extracts equations from a mod file and produce .inc files (equations, lists of
parameters, endogenous variables and exogenous variables) that can be included
in a mod file that will be used to simulate the model.

If an innovation has a tag `(used='estimationonly')` it will be excluded from
the generated files (ie list of shocks and equations).
time-shift
Stéphane Adjemian (Charybdis) 2019-03-14 11:04:10 +01:00
parent 52eed33c42
commit d3db092c81
Signed by untrusted user who does not match committer: stepan
GPG Key ID: A6D44CB9C64CE77B
10 changed files with 479 additions and 99 deletions

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@ -41,4 +41,4 @@ if nargin<3
withcalibration = true;
end
print_expectations(eqname, pacexpectationmodelname, 'pac-expectations', withcalibration);
print_expectations(eqname, pacexpectationmodelname, 'pac', withcalibration);

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@ -40,4 +40,4 @@ if nargin<2
withcalibration = true;
end
print_expectations('fake', varexpectationmodelname, 'var-expectations', withcalibration);
print_expectations('fake', varexpectationmodelname, 'var', withcalibratiyon);

118
matlab/cherrypick.m Normal file
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@ -0,0 +1,118 @@
function cherrypick(infile, outfold, eqtags, noresids)
% Extract some equations in infile (mod file used for estimation)
% and write them in outfile (mod file used for simulation).
%
% INPUTS
% - infile [string] Name of the mod file where all the equations used for estimation are available.
% - outfold [string] Name of the folder where the generated files are saveda subset of the equations is to be printed.
% - eqtags [cell] Equation tags of the selected equations.
% - noresids [logical] Removes estimation residuals (not to be used in simulation) if true.
%
% OUTPUTS
% none.
%
% SPECIAL REQUIREMENTS
% It is expected that the file infile.mod has already been run, and
% that the associated JSON output is available.
% Copyright (C) 2019 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 M_
% Set default value
if nargin<4
noresids = true;
end
% Delete outfold subdirectory if it already exists
if exist(outfold, 'dir')
rmdir(outfold, 's');
end
% Create the subdirectoty where the generated files will be saved.
mkdir(outfold);
% Check that infile.mod and the related JSON output exist.
if ~exist(sprintf('%s.mod', infile), 'file')
error('Cannot find %s.mod.', infile)
end
if ~exist(sprintf('%s/model/json', infile), 'dir')
error('Cannot find %s/model/json folder. Did you run %s.mod with the json option?', infile, infile);
end
% Create a new file.
fid = fopen(sprintf('%s/model.inc', outfold), 'w');
plist = {};
elist = {};
xlist = {};
for i=1:length(eqtags)
% Get the original equation.
[LHS, RHS] = get_lhs_and_rhs(eqtags{i}, M_, true);
% Get the parameters, endogenous and exogenous variables in the current equation.
[pnames, enames, xnames] = get_variables_and_parameters_in_equation(LHS, RHS, M_);
% Remove residual from equation if required.
if noresids
exogenous_variables_to_be_removed = ~ismember(xnames, M_.simulation_exo_names);
if any(exogenous_variables_to_be_removed)
switch sum(exogenous_variables_to_be_removed)
case 1
RHS = regexprep(RHS, sprintf('(\\ *)(+)(\\ *)%s', xnames{exogenous_variables_to_be_removed}), '');
case 0
% Nothing to do.
otherwise
error('Cannot remove more than one exogenous variable in an equation (%s).', eqtags{i})
end
xnames = setdiff(xnames, xnames{exogenous_variables_to_be_removed});
end
end
% Unroll expectation terms if any.
isvar = regexp(RHS, 'var_expectation\(model_name = (?<name>\w+)\)', 'names');
ispac = regexp(RHS, 'pac_expectation\(model_name = (?<name>\w+)\)', 'names');
if ~isempty(isvar)
expression = write_expectations(eqtags{i}, isvar.name, 'var');
RHS = strrep(RHS, sprintf('var_expectation(model_name = %s)', isvar.name), expression);
else
if ~isempty(ispac)
expression = write_expectations(eqtags{i}, ispac.name, 'pac');
RHS = strrep(RHS, sprintf('pac_expectation(model_name = %s)', ispac.name), expression);
end
end
% Print equation.
fprintf(fid, '%s = %s;\n\n', LHS, RHS);
% Update lists of parameters, endogenous variables and exogenous variables.
plist = union(plist, pnames);
elist = union(elist, enames);
xlist = union(xlist, xnames);
end
fclose(fid);
fid = fopen(sprintf('%s/parameters.inc', outfold), 'w');
fprintf(fid, 'parameters %s;', sprintf('%s ', plist{:}));
fclose(fid);
fid = fopen(sprintf('%s/endogenous.inc', outfold), 'w');
fprintf(fid, 'var %s;', sprintf('%s ', elist{:}));
fclose(fid);
fid = fopen(sprintf('%s/exogenous.inc', outfold), 'w');
fprintf(fid, 'varexo %s;', sprintf('%s ', xlist{:}));
fclose(fid);

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@ -41,9 +41,21 @@ rhs_ = strsplit(rhs,{'+','-','*','/','^', ...
'normcdf(', 'normpdf(', 'erf(', ...
'diff(', 'adl(', '(', ')'});
lhs_ = strsplit(lhs, {'+','-','*','/','^', ...
'log(', 'log10(', 'ln(', 'exp(', ...
'sqrt(', 'abs(', 'sign(', ...
'sin(', 'cos(', 'tan(', 'asin(', 'acos(', 'atan(', ...
'min(', 'max(', ...
'normcdf(', 'normpdf(', 'erf(', ...
'diff(', 'adl(', '(', ')'});
% Filter out the numbers and punctuation.
rhs_(cellfun(@(x) all(isstrprop(x, 'digit')+isstrprop(x, 'punct')), rhs_)) = [];
% Filter out empty elements.
rhs_(cellfun(@(x) all(isempty(x)), rhs_)) = [];
lhs_(cellfun(@(x) all(isempty(x)), lhs_)) = [];
% Get list of parameters.
pnames = DynareModel.param_names;
pnames = intersect(rhs_, pnames);
@ -64,7 +76,7 @@ if ~isempty(id)
end
% Add lhs variable in first position of enames.
enames = [lhs; enames];
enames = [lhs_; enames];
% Returns vector of indices for parameters endogenous and exogenous
% variables if required.

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@ -20,7 +20,7 @@ function print_expectations(eqname, expectationmodelname, expectationmodelkind,
% These routines are saved under the {modfilename}/model/{expectationmodelkind} subfolder, and can be
% used after in another mod file (ie included with the macro directive @#include).
%
% The variable expectationmodelkind can take two values 'var-expctations' or 'pac-expectations'.
% The variable expectationmodelkind can take two values 'var' or 'pac'.
% Copyright (C) 2018-2019 Dynare Team
%
@ -61,19 +61,19 @@ if ~isrow(expectationmodelkind)==1 || ~ischar(expectationmodelkind)
end
% Check that the value of the second input is correct.
if ~ismember(expectationmodelkind, {'var-expectations', 'pac-expectations'})
if ~ismember(expectationmodelkind, {'var', 'pac'})
error('Wrong value for the second input argument.')
end
% Check that the model exists.
switch expectationmodelkind
case 'var-expectations'
case 'var'
if ~isfield(M_.var_expectation, expectationmodelname)
error('VAR_EXPECTATION_MODEL %s is not defined.', expectationmodelname)
else
expectationmodelfield = 'var_expectation';
end
case 'pac-expectations'
case 'pac'
if ~isfield(M_.pac, expectationmodelname)
error('PAC_EXPECTATION_MODEL %s is not defined.', expectationmodelname)
else
@ -82,7 +82,7 @@ switch expectationmodelkind
otherwise
end
if isequal(expectationmodelkind, 'pac-expectations')
if isequal(expectationmodelkind, 'pac')
% Get the equation tag (in M_.pac.(pacmodl).equations)
eqtag = M_.pac.(expectationmodelname).tag_map{strcmp(M_.pac.(expectationmodelname).tag_map(:,1), eqname),2};
end
@ -93,9 +93,9 @@ expectationmodel = M_.(expectationmodelfield).(expectationmodelname);
% Get the name of the associated VAR model and test its existence.
if ~isfield(M_.(expectationmodel.auxiliary_model_type), expectationmodel.auxiliary_model_name)
switch expectationmodelkind
case 'var-expectations'
case 'var'
error('Unknown VAR/TREND_COMPONENT model (%s) in VAR_EXPECTATION_MODEL (%s)!', expectationmodel.auxiliary_model_name, expectationmodelname)
case 'pac-expectations'
case 'pac'
error('Unknown VAR/TREND_COMPONENT model (%s) in PAC_EXPECTATION_MODEL (%s)!', expectationmodel.auxiliary_model_name, expectationmodelname)
otherwise
end
@ -106,20 +106,20 @@ auxmodel = M_.(expectationmodel.auxiliary_model_type).(expectationmodel.auxiliar
%
% First print the list of parameters appearing in the VAR_EXPECTATION/PAC_EXPECTATION term.
%
if ~exist(sprintf('%s/model/%s', M_.fname, expectationmodelkind), 'dir')
mkdir(sprintf('%s/model/%s', M_.fname, expectationmodelkind))
if ~exist(sprintf('%s/model/%s', M_.fname, [expectationmodelkind '-expectations']), 'dir')
mkdir(sprintf('%s/model/%s', M_.fname, [expectationmodelkind '-expectations']))
end
if isequal(expectationmodelkind, 'pac-expectations')
filename = sprintf('%s/model/%s/%s-%s-parameters.inc', M_.fname, expectationmodelkind, eqtag, expectationmodelname);
if isequal(expectationmodelkind, 'pac')
filename = sprintf('%s/model/%s/%s-%s-parameters.inc', M_.fname, [expectationmodelkind '-expectations'], eqtag, expectationmodelname);
else
filename = sprintf('%s/model/%s/%s-parameters.inc', M_.fname, expectationmodelkind, expectationmodelname);
filename = sprintf('%s/model/%s/%s-parameters.inc', M_.fname, [expectationmodelkind '-expectations'], expectationmodelname);
end
fid = fopen(filename, 'w');
fprintf(fid, '// This file has been generated by dynare (%s).\n\n', datestr(now));
switch expectationmodelkind
case 'var-expectations'
case 'var'
parameter_declaration = 'parameters';
for i=1:length(expectationmodel.param_indices)
parameter_declaration = sprintf('%s %s', parameter_declaration, M_.param_names{expectationmodel.param_indices(i)});
@ -130,7 +130,7 @@ switch expectationmodelkind
fprintf(fid, '%s = %s;\n', M_.param_names{expectationmodel.param_indices(i)}, num2str(M_.params(expectationmodel.param_indices(i)), 16));
end
end
case 'pac-expectations'
case 'pac'
if ~isempty(expectationmodel.equations.(eqtag).h0_param_indices)
parameter_declaration = 'parameters';
for i=1:length(expectationmodel.equations.(eqtag).h0_param_indices)
@ -177,80 +177,19 @@ fprintf('Parameters declarations and calibrations are saved in %s.\n', filename)
% Second print the expanded VAR_EXPECTATION/PAC_EXPECTATION term.
%
if isequal(expectationmodelkind, 'pac-expectations')
filename = sprintf('%s/model/%s/%s-%s-expression.inc', M_.fname, expectationmodelkind, eqtag, expectationmodelname);
if isequal(expectationmodelkind, 'pac')
filename = sprintf('%s/model/%s/%s-%s-expression.inc', M_.fname, [expectationmodelkind '-expectations'], eqtag, expectationmodelname);
else
filename = sprintf('%s/model/%s/%s-expression.inc', M_.fname, expectationmodelkind, expectationmodelname);
filename = sprintf('%s/model/%s/%s-expression.inc', M_.fname, [expectationmodelkind '-expectations'], expectationmodelname);
end
fid = fopen(filename, 'w');
fprintf(fid, '// This file has been generated by dynare (%s).\n', datestr(now));
id = 0;
maxlag = max(auxmodel.max_lag);
if isequal(expectationmodel.auxiliary_model_type, 'trend_component')
% Need to add a lag since the error correction equations are rewritten in levels.
maxlag = maxlag+1;
end
for i=1:maxlag
for j=1:length(auxmodel.list_of_variables_in_companion_var)
id = id+1;
variable = auxmodel.list_of_variables_in_companion_var{j};
transformations = {};
ida = get_aux_variable_id(variable);
op = 0;
while ida
op = op+1;
if isequal(M_.aux_vars(ida).type, 8)
transformations(op) = {'diff'};
variable = M_.endo_names{M_.aux_vars(ida).orig_index};
ida = get_aux_variable_id(variable);
elseif isequal(M_.aux_vars(ida).type, 10)
transformations(op) = {M_.aux_vars(ida).unary_op};
variable = M_.endo_names{M_.aux_vars(ida).orig_index};
ida = get_aux_variable_id(variable);
else
error('This case is not implemented.')
end
end
switch expectationmodelkind
case 'var-expectations'
parameter = M_.param_names{expectationmodel.param_indices(id)};
case 'pac-expectations'
parameter = '';
if ~isempty(expectationmodel.equations.(eqtag).h0_param_indices)
parameter = M_.param_names{expectationmodel.equations.(eqtag).h0_param_indices(id)};
end
if ~isempty(expectationmodel.equations.(eqtag).h1_param_indices)
if isempty(parameter)
parameter = M_.param_names{expectationmodel.equations.(eqtag).h1_param_indices(id)};
else
parameter = sprintf('(%s+%s)', parameter, M_.param_names{expectationmodel.equations.(eqtag).h1_param_indices(id)});
end
end
otherwise
end
switch expectationmodelkind
case 'var-expectations'
if i>1
variable = sprintf('%s(-%d)', variable, i-1);
end
case 'pac-expectations'
variable = sprintf('%s(-%d)', variable, i);
otherwise
end
if ~isempty(transformations)
for k=length(transformations):-1:1
variable = sprintf('%s(%s)', transformations{k}, variable);
end
end
if isequal(id, 1)
expression = sprintf('%s*%s\n', parameter, variable);
else
expression = sprintf('%s + %s*%s\n', expression, parameter, variable);
end
end
switch expectationmodelkind
case 'var'
expression = write_expectations(eqname, expectationmodelname, expectationmodelkind, true);
case 'pac'
[expression, growthneutralitycorrection] = write_expectations(eqname, expectationmodelname, expectationmodelkind, true);
end
fprintf(fid, '%s', expression);
@ -262,11 +201,11 @@ fprintf('Expectation unrolled expression is saved in %s.\n', filename);
% Second bis print the PAC growth neutrality correction term (if any).
%
if isequal(expectationmodelkind, 'pac-expectations') && growth_correction
filename = sprintf('%s/model/%s/%s-%s-growth-neutrality-correction.inc', M_.fname, expectationmodelkind, eqtag, expectationmodelname);
if isequal(expectationmodelkind, 'pac') && growth_correction
filename = sprintf('%s/model/%s/%s-%s-growth-neutrality-correction.inc', M_.fname, [expectationmodelkind '-expectations'], eqtag, expectationmodelname);
fid = fopen(filename, 'w');
fprintf(fid, '// This file has been generated by dynare (%s).\n', datestr(now));
fprintf(fid, '%s*%s', M_.param_names{expectationmodel.growth_neutrality_param_index}, expectationmodel.growth_str);
fprintf(fid, '%s', growthneutralitycorrection);
fclose(fid);
fprintf('Growth neutrality correction is saved in %s.\n', filename);
end
@ -274,20 +213,20 @@ end
%
% Third print a routine for evaluating VAR_EXPECTATION/PAC_EXPECTATION term (returns a dseries object).
%
kind = strrep(expectationmodelkind, '-', '_');
kind = [expectationmodelkind '_expectations'];
mkdir(sprintf('+%s/+%s/+%s', M_.fname, kind, expectationmodelname));
if isequal(expectationmodelkind, 'pac-expectations')
if isequal(expectationmodelkind, 'pac')
filename = sprintf('+%s/+%s/+%s/%s_evaluate.m', M_.fname, kind, expectationmodelname, eqtag);
else
filename = sprintf('+%s/+%s/+%s/evaluate.m', M_.fname, kind, expectationmodelname);
end
fid = fopen(filename, 'w');
if isequal(expectationmodelkind, 'pac-expectations')
if isequal(expectationmodelkind, 'pac')
fprintf(fid, 'function ds = %s_evaluate(dbase)\n\n', eqtag);
else
fprintf(fid, 'function ds = evaluate(dbase)\n\n');
end
if isequal(expectationmodelkind, 'pac-expectations')
if isequal(expectationmodelkind, 'pac')
fprintf(fid, '%% Evaluates %s term (%s in %s).\n', kind, expectationmodelname, eqname);
else
fprintf(fid, '%% Evaluates %s term (%s).\n', kind, expectationmodelname);
@ -334,9 +273,9 @@ for i=1:maxlag
end
end
switch expectationmodelkind
case 'var-expectations'
case 'var'
parameter = M_.params(expectationmodel.param_indices(id));
case 'pac-expectations'
case 'pac'
parameter = 0;
if ~isempty(expectationmodel.equations.(eqtag).h0_param_indices)
parameter = M_.params(expectationmodel.equations.(eqtag).h0_param_indices(id));
@ -351,13 +290,13 @@ for i=1:maxlag
otherwise
end
switch expectationmodelkind
case 'var-expectations'
case 'var'
if i>1
variable = sprintf('dbase.%s(-%d)', variable, i-1);
else
variable = sprintf('dbase.%s', variable);
end
case 'pac-expectations'
case 'pac'
variable = sprintf('dbase.%s(-%d)', variable, i);
otherwise
end
@ -367,7 +306,7 @@ for i=1:maxlag
end
end
if isequal(id, 1)
if isequal(expectationmodelkind, 'pac-expectations') && growth_correction
if isequal(expectationmodelkind, 'pac') && growth_correction
pgrowth = M_.params(expectationmodel.growth_neutrality_param_index);
vgrowth = expectationmodel.growth_str;
switch expectationmodel.growth_type

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@ -0,0 +1,35 @@
function DynareModel = set_exogenous_variables_for_simulation(DynareModel)
% Appends the list of observed exogenous variables in Dynare's model structure (if any).
%
% INPUTS
% - DynareModel [struct] Dynare's model global structure, M_.
%
% OUTPUTS
% - DynareModel [struct] Dynare's model global structure, M_.
%
% SPECIAL REQUIREMENTS
% none
% Copyright (C) 2019 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/>.
if isfield(DynareModel, 'exo_partitions')
if isfield(DynareModel.exo_partitions, 'used')
DynareModel.simulation_exo_names = DynareModel.exo_names(~strcmpi('estimationonly', DynareModel.exo_partitions.used));
end
end

153
matlab/write_expectations.m Normal file
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@ -0,0 +1,153 @@
function [expression, growthneutralitycorrection] = write_expectations(eqname, expectationmodelname, expectationmodelkind, iscrlf)
% Prints the exansion of the VAR_EXPECTATION or PAC_EXPECTATION term in files.
%
% INPUTS
% - eqname [string] Name of the equation.
% - epxpectationmodelname [string] Name of the expectation model.
% - expectationmodelkind [string] Kind of the expectation model ('var' or 'pac').
% - iscrlf [string] Adds carriage return after each additive term if true.
%
% OUTPUTS
% - expression [string] Unrolled expectation expression.
% - growthneutralitycorrection [string]
% Copyright (C) 2019 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 M_
if ismember(expectationmodelkind, {'var', 'pac'})
if isequal(expectationmodelkind, 'var')
expectationmodelfield = 'var_expectation';
else
expectationmodelfield = 'pac';
% Get the equation tag (in M_.pac.(pacmodl).equations)
eqtag = M_.pac.(expectationmodelname).tag_map{strcmp(M_.pac.(expectationmodelname).tag_map(:,1), eqname),2};
end
else
error('Value of third input argument must be ''var'' or ''pac''.')
end
expectationmodel = M_.(expectationmodelfield).(expectationmodelname);
if nargout>1 && isequal(expectationmodelkind, 'var')
error('Cannot return more than one argument if the expectation model is a VAR.')
end
if nargin<4
iscrlf = false;
end
% Get the name of the associated VAR model and test its existence.
if ~isfield(M_.(expectationmodel.auxiliary_model_type), expectationmodel.auxiliary_model_name)
switch expectationmodelkind
case 'var-expectations'
error('Unknown VAR/TREND_COMPONENT model (%s) in VAR_EXPECTATION_MODEL (%s)!', expectationmodel.auxiliary_model_name, expectationmodelname)
case 'pac-expectations'
error('Unknown VAR/TREND_COMPONENT model (%s) in PAC_EXPECTATION_MODEL (%s)!', expectationmodel.auxiliary_model_name, expectationmodelname)
otherwise
end
end
auxmodel = M_.(expectationmodel.auxiliary_model_type).(expectationmodel.auxiliary_model_name);
maxlag = max(auxmodel.max_lag);
if isequal(expectationmodel.auxiliary_model_type, 'trend_component')
% Need to add a lag since the error correction equations are rewritten in levels.
maxlag = maxlag+1;
end
id = 0;
for i=1:maxlag
for j=1:length(auxmodel.list_of_variables_in_companion_var)
id = id+1;
variable = auxmodel.list_of_variables_in_companion_var{j};
transformations = {};
ida = get_aux_variable_id(variable);
op = 0;
while ida
op = op+1;
if isequal(M_.aux_vars(ida).type, 8)
transformations(op) = {'diff'};
variable = M_.endo_names{M_.aux_vars(ida).orig_index};
ida = get_aux_variable_id(variable);
elseif isequal(M_.aux_vars(ida).type, 10)
transformations(op) = {M_.aux_vars(ida).unary_op};
variable = M_.endo_names{M_.aux_vars(ida).orig_index};
ida = get_aux_variable_id(variable);
else
error('This case is not implemented.')
end
end
switch expectationmodelkind
case 'var'
parameter = M_.param_names{expectationmodel.param_indices(id)};
case 'pac'
parameter = '';
if ~isempty(expectationmodel.equations.(eqtag).h0_param_indices)
parameter = M_.param_names{expectationmodel.equations.(eqtag).h0_param_indices(id)};
end
if ~isempty(expectationmodel.equations.(eqtag).h1_param_indices)
if isempty(parameter)
parameter = M_.param_names{expectationmodel.equations.(eqtag).h1_param_indices(id)};
else
parameter = sprintf('(%s+%s)', parameter, M_.param_names{expectationmodel.equations.(eqtag).h1_param_indices(id)});
end
end
otherwise
end
switch expectationmodelkind
case 'var'
if i>1
variable = sprintf('%s(-%d)', variable, i-1);
end
case 'pac'
variable = sprintf('%s(-%d)', variable, i);
otherwise
end
if ~isempty(transformations)
for k=length(transformations):-1:1
variable = sprintf('%s(%s)', transformations{k}, variable);
end
end
if isequal(id, 1)
if iscrlf
expression = sprintf('%s*%s\n', parameter, variable);
else
expression = sprintf('%s*%s', parameter, variable);
end
else
if iscrlf
expression = sprintf('%s + %s*%s\n', expression, parameter, variable);
else
expression = sprintf('%s + %s*%s', expression, parameter, variable);
end
end
end
end
if isfield(expectationmodel, 'growth_neutrality_param_index')
growthneutralitycorrection = sprintf('%s*%s', M_.param_names{expectationmodel.growth_neutrality_param_index}, expectationmodel.growth_str);
else
growthneutralitycorrection = '';
end
if nargout==1 && ~isempty(growthneutralitycorrection)
expression = sprintf('%s + %s', expression, growthneutralitycorrection);
end

@ -1 +1 @@
Subproject commit e0acc669bdfce02baa94a0ff0372d72578fba177
Subproject commit 9632b18c247ca16cdc8d6fbe71bc036b3d0dc435

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@ -0,0 +1,8 @@
#!/bin/sh
rm -rf example
rm -rf +example
rm -f example.log
rm -f *.mat
rm -f *.m
rm -f *.dat

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@ -0,0 +1,115 @@
// --+ options: json=compute, stochastic +--
var x1 x2 x1bar x2bar z y x u v s;
varexo ex1
ex2
ex1bar (used='estimationonly')
ex2bar (used='estimationonly')
ez
ey
ex
eu
ev
es;
parameters
rho_1 rho_2 rho_3 rho_4
a_x1_0 a_x1_1 a_x1_2 a_x1_x2_1 a_x1_x2_2
a_x2_0 a_x2_1 a_x2_2 a_x2_x1_1 a_x2_x1_2
e_c_m c_z_1 c_z_2 c_z_dx2 c_z_u c_z_dv c_z_s cx cy beta
lambda;
rho_1 = .9;
rho_2 = -.2;
rho_3 = .4;
rho_4 = -.3;
a_x1_0 = -.9;
a_x1_1 = .4;
a_x1_2 = .3;
a_x1_x2_1 = .1;
a_x1_x2_2 = .2;
a_x2_0 = -.9;
a_x2_1 = .2;
a_x2_2 = -.1;
a_x2_x1_1 = -.1;
a_x2_x1_2 = .2;
beta = .2;
e_c_m = .5;
c_z_1 = .2;
c_z_2 = -.1;
c_z_dx2 = .3;
c_z_u = .3;
c_z_dv = .4;
c_z_s = -.2;
cx = 1.0;
cy = 1.0;
lambda = 0.5; // Share of optimizing agents.
trend_component_model(model_name=toto, eqtags=['eq:x1', 'eq:x2', 'eq:x1bar', 'eq:x2bar'], targets=['eq:x1bar', 'eq:x2bar']);
pac_model(auxiliary_model_name=toto, discount=beta, model_name=pacman);
model;
[name='eq:u']
s = .3*s(-1) - .1*s(-2) + es;
[name='eq:diff(v)']
diff(v) = .5*diff(v(-1)) + ev;
[name='eq:u']
u = .5*u(-1) - .2*u(-2) + eu;
[name='eq:y']
y = rho_1*y(-1) + rho_2*y(-2) + ey;
[name='eq:x']
x = rho_3*x(-1) + rho_4*x(-2) + ex;
[name='eq:x1']
diff(x1) = a_x1_0*(x1(-1)-x1bar(-1)) + a_x1_1*diff(x1(-1)) + a_x1_2*diff(x1(-2)) + a_x1_x2_1*diff(x2(-1)) + a_x1_x2_2*diff(x2(-2)) + ex1;
[name='eq:x2']
diff(x2) = a_x2_0*(x2(-1)-x2bar(-1)) + a_x2_1*diff(x1(-1)) + a_x2_2*diff(x1(-2)) + a_x2_x1_1*diff(x2(-1)) + a_x2_x1_2*diff(x2(-2)) + ex2;
[name='eq:x1bar']
x1bar = x1bar(-1) + ex1bar;
[name='eq:x2bar']
x2bar = x2bar(-1) + ex2bar;
[name='zpac']
diff(z) = lambda*(e_c_m*(x1(-1)-z(-1)) + c_z_1*diff(z(-1)) + c_z_2*diff(z(-2)) + pac_expectation(pacman) + c_z_s*s + c_z_dv*diff(v) ) + (1-lambda)*( cy*y + cx*x) + c_z_u*u + c_z_dx2*diff(x2) + ez;
end;
shocks;
var ex1 = 1.0;
var ex2 = 1.0;
var ex1bar = 1.0;
var ex2bar = 1.0;
var ez = 1.0;
var ey = 0.1;
var ex = 0.1;
var eu = 0.05;
var ev = 0.05;
var es = 0.07;
end;
// Initialize the PAC model (build the Companion VAR representation for the auxiliary model).
pac.initialize('pacman');
// Update the parameters of the PAC expectation model (h0 and h1 vectors).
pac.update.expectation('pacman');
// Select a subset of the equations and print the equations, the list of parameters, endogenous
// variables and exogenous variables in .inc files under ./simulation-files folder. Note that
// innovations ex1bar and ex2bar will not appear in the equations.
cherrypick('example', 'simulation-files', {'zpac', 'eq:x1', 'eq:x2', 'eq:x1bar', 'eq:x2bar'}, true);