Accessors for posterior distributions of objects, needed by the MATLAB GUI
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function r = get_posterior_covariance(endo1, endo2)
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% Copyright (C) 2020 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 <http://www.gnu.org/licenses/>.
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global M_ options_
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id1 = find(strcmp(endo1, M_.endo_names));
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if nargin < 2
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id2 = id1;
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else
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id2 = find(strcmp(endo2, M_.endo_names));
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end
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ivar = get_variables_list(options_,M_);
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if ~ismember(id1, ivar)
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error('Posterior moments have not been computed for %s', endo1)
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end
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if ~ismember(id2, ivar)
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error('Posterior moments have not been computed for %s', endo2)
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end
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r = struct('draw', [], 'moment', []);
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% Fetch parameter draws
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NumberDrawsFiles = length(dir([M_.dname '/metropolis/' M_.fname '_posterior_draws*' ]));
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if NumberDrawsFiles == 0
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error('Can''t find posterior draws file(s)')
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end
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idx = 1;
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for file = 1:NumberDrawsFiles
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load([M_.dname '/metropolis/' M_.fname '_posterior_draws' int2str(file) ],'pdraws');
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for i = 1:size(pdraws, 1)
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r(idx).draw = pdraws{i, 1};
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idx = idx+1;
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end
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end
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% Fetch moments
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symidx = symmetric_matrix_index(find(ivar==id1), find(ivar==id2), length(ivar));
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NumberMomentsFiles = length(dir([M_.dname '/metropolis/' M_.fname '_Posterior2ndOrderMoments*']));
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if NumberMomentsFiles == 0
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error('Can''t find posterior 2nd order moments file(s)')
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end
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idx = 1;
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for file = 1:NumberMomentsFiles
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load([M_.dname '/metropolis/' M_.fname '_Posterior2ndOrderMoments' int2str(file) ],'Covariance_matrix');
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for i = 1:size(Covariance_matrix, 1)
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r(idx).moment = Covariance_matrix(i, symidx);
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idx = idx+1;
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end
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end
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function r = get_posterior_irf(endo, exo)
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% Copyright (C) 2020 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 <http://www.gnu.org/licenses/>.
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global M_ options_
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endo_id = find(strcmp(endo, M_.endo_names));
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exo_id = find(strcmp(exo, M_.exo_names));
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if isempty(exo_id)
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error('Unknown exogenous: %s', exo)
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end
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ivar = get_variables_list(options_,M_);
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if ~ismember(endo_id, ivar)
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error('Posterior IRFs have not been computed for %s', endo)
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end
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r = struct('draw', [], 'irf', []);
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% Fetch parameter draws
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NumberDrawsFiles = length(dir([M_.dname '/metropolis/' M_.fname '_param_irf*' ]));
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if NumberDrawsFiles == 0
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error('Can''t find posterior draws file(s)')
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end
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idx = 1;
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for file = 1:NumberDrawsFiles
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load([M_.dname '/metropolis/' M_.fname '_param_irf' int2str(file) ],'stock');
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for i = 1:size(stock, 1)
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r(idx).draw = stock(i, :);
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idx = idx+1;
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end
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end
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% Fetch IRFs
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% We use the raw files, i.e. those that are *not* the output of
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% ReshapeMatFiles.m. Their filename contains 'irf_dsge' in *lowercase*.
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NumberIRFsFiles = length(dir([M_.dname '/metropolis/' M_.fname '_irf_dsge*']));
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if NumberIRFsFiles == 0
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error('Can''t find posterior IRFs file(s)')
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end
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endo_id_varlist = find(ivar == endo_id);
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idx = 1;
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for file = 1:NumberIRFsFiles
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load([M_.dname '/metropolis/' M_.fname '_irf_dsge' int2str(file) ],'stock_irf_dsge');
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for i = 1:size(stock_irf_dsge, 4)
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r(idx).irf = stock_irf_dsge(:, endo_id_varlist, exo_id, i);
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idx = idx+1;
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end
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end
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function r = get_posterior_timeseries(type, endo)
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% Returns the posterior distribution of either
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% smoothed/updated/filtered/forecast timeseries for a given endogenous variable.
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% "type" must be either 'smoothed', 'updated', 'filtered' or 'forecast'.
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%
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% For filtered variables, returns a matrix with step-ahead in lines and periods
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% in columns.
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% For forecasts, returns the "point" forecast (i.e. with uncertainty about both
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% parameters and shocks).
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% Copyright (C) 2020 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 <http://www.gnu.org/licenses/>.
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global M_
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endo_id = find(strcmp(endo, M_.endo_names));
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if isempty(endo_id)
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error('Unknown endogenous variable %s', endo)
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end
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r = struct('draw', [], type, []);
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% Fetch parameter draws
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DrawsFiles = dir([M_.dname '/metropolis/' M_.fname '_param*' ]);
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NumberDrawsFiles = 0;
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for i=1:length(DrawsFiles)
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% We need to filter out the _param_irf* files
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if ~isempty(regexp(DrawsFiles(i).name, '.*_param[0-9]+\.mat'))
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NumberDrawsFiles = NumberDrawsFiles + 1;
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end
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end
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if NumberDrawsFiles == 0
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error('Can''t find posterior draws file(s)')
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end
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idx = 1;
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for file = 1:NumberDrawsFiles
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load([M_.dname '/metropolis/' M_.fname '_param' int2str(file) ],'stock');
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for i = 1:size(stock, 1)
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r(idx).draw = stock(i, :);
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idx = idx+1;
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end
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end
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% Fetch timeseries
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switch type
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case 'smoothed'
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basename = 'smooth';
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case 'updated'
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basename = 'update';
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case 'filtered'
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basename = 'filter_step_ahead';
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case 'forecast'
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basename = 'forc_point';
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otherwise
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error('Unknown type requested. Should be one of: smoothed, updated, filtered, forecast')
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end
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if strcmp(type, 'smoothed')
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SmoothedFiles = dir([M_.dname '/metropolis/' M_.fname '_smooth*']);
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NumberTimeseriesFiles = 0;
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for i=1:length(SmoothedFiles)
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%% We need to filter out the _smoothed_{constant,trend}* files
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if ~isempty(regexp(SmoothedFiles(i).name, '.*_smooth[0-9]+\.mat'))
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NumberTimeseriesFiles = NumberTimeseriesFiles + 1;
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end
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end
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else
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NumberTimeseriesFiles = length(dir([M_.dname '/metropolis/' M_.fname '_' ...
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basename '*']));
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end
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if NumberTimeseriesFiles == 0
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error('Can''t find file(s) with posterior timeseries of requested type')
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end
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idx = 1;
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for file = 1:NumberTimeseriesFiles
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load([M_.dname '/metropolis/' M_.fname '_' basename int2str(file) ],'stock');
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if strcmp(type, 'filtered')
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for i = 1:size(stock, 4)
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r(idx).(type) = reshape(stock(:, endo_id, :, i), size(stock,1), size(stock,3));
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idx = idx+1;
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end
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else
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for i = 1:size(stock, 3)
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r(idx).(type) = stock(endo_id, :, i)';
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idx = idx+1;
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end
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end
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end
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