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function b = isauxiliary(var, type)
% Returns true if var is an auxiliary variable.
%
% INPUTS
% - var [string] Name of the variable.
% - type [integer] Type of auxiliary variable.
%
% OUTPUTS
% - b [logical]
%
% REMARKS
%
% Types for auxiliary variables are as follows:
%
% - 0, Lead on endogenous variable (substitute for endo leads >= 2)
% - 1, Lag on endogenous variable (ubstitute for endo lags >= 2)
% - 2, Lead on exogenous variable (ubstitute for exo leads >= 1)
% - 3, Lag on exogenous variable (substitute for exo lags >= 1)
% - 4 Expectation (substitute for Expectation Operator)
% - 5, Diff forward (substitute for the differentiate of a forward variable)
% - 6, Multipliers for FOC of Ramsey Problem
% - 7, Variable for var_model with order > abs(min_lag()) present in model
% - 8, Variable for Diff operator
% - 9, Lag on Diff
% - 10, Unary operator (log, exp)
% - 11, Lead on Diff
% Copyright (C) 2018-2019 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_
b = false;
id = find(strcmp(var, M_.endo_names));
if isempty(id)
return
end
if id<=M_.orig_endo_nbr
return
else
b = true;
if nargin<2
return
end
end
auxinfo = M_.aux_vars(get_aux_variable_id(id));
if ~isequal(auxinfo.type, type)
b = false;
end
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