46 lines
2.0 KiB
Matlab
46 lines
2.0 KiB
Matlab
function [ME_present,observable_pos_requested_vars,index_subset,index_observables]=check_measurement_error_requested_vars(M_,options_,ivar)
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% [ME_present,observable_pos_requested_vars,index_subset,index_observables]=check_measurement_error_requested_vars(M_,options_,ivar)
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% This function checks for the presence of measurement error and outputs
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% the indices of the affected variables
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%
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% INPUTS
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% M_ [struct] Matlab's structure describing the Model
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% options_ [struct] Matlab's structure describing the options
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% i_var : [double] Index of requested variables in declaration order
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%
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% OUTPUTS
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% ME_present [boolean] indicator whether measurement error is present for requested variables
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% observable_pos_requested_vars [integer] index of observables in list of endogenous variables
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% index_subset [integer] index of observables in ivar
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% index_observables [integer] index of requested i_var in observables
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% Copyright © 2023 Dynare Team
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%
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% This file is part of Dynare.
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%
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% Dynare is free software: you can redistribute it and/or modify
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% it under the terms of the GNU General Public License as published by
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% the Free Software Foundation, either version 3 of the License, or
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% (at your option) any later version.
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%
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% Dynare is distributed in the hope that it will be useful,
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% but WITHOUT ANY WARRANTY; without even the implied warranty of
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% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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% GNU General Public License for more details.
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%
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% You should have received a copy of the GNU General Public License
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% along with Dynare. If not, see <https://www.gnu.org/licenses/>.
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index_subset=[];
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index_observables=[];
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observable_pos_requested_vars=[];
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ME_present=false;
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if ~all(diag(M_.H)==0)
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[observable_pos_requested_vars,index_subset,index_observables]=intersect(ivar,options_.varobs_id,'stable');
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if ~isempty(observable_pos_requested_vars)
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ME_present=true;
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end
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end
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