148 lines
4.4 KiB
Matlab
148 lines
4.4 KiB
Matlab
function [freq,init,data,varlist,tex] = load_m_file_data(file)
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% Loads data in a matlab/octave script.
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%
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% INPUTS
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% o file string, name of the matlab/octave script (with path)
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%
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% OUTPUTS
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% o freq integer scalar equal to 1, 4, 12 or 52 (for annual, quaterly, monthly or weekly frequencies).
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% o init dates object, initial date in the dataset.
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% o data matrix of doubles, the data.
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% o varlist cell of strings, names of the variables.
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%
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% REMARKS
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% The frequency and initial date can be specified with variables FREQ__ and INIT__ in the matlab/octave script. FREQ__ must
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% be a scalar integer and INIT__ a string like '1938M11', '1945Q3', '1973W3' or '2009A'. If these variables are not specified
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% default values for freq and init are 1 and dates(1,1).
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% Copyright (C) 2012-2013 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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[basename, ext] = strtok(file,'.');
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run(basename);
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if exist('INIT__','var')
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if isdate(INIT__)
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init = dates(INIT__);
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clear('INIT__')
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else
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error('load_m_file_data: INIT__ cannot be interpreted as a date.')
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end
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else
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init = dates(1,1); % Default initial date is year one.
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end
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if exist('FREQ__','var')
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freq = FREQ__;
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clear('FREQ__');
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else
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freq = init.freq;
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end
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if ~isequal(freq,init.freq)
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error('load_m_file_data: INIT__ and FREQ__ are not consistent!')
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end
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if exist('NAMES__','var')
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varlist0 = NAMES__;
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clear('NAMES__');
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else
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varlist0 = [];
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list_of_variables = [];
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end
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if exist('TEX__','var')
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tex = TEX__;
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clear('TEX__');
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else
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tex = [];
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end
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if isempty(varlist0)
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list_of_variables = whos();
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end
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data = [];
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varlist = {};
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if isempty(varlist0)
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for i=1:length(list_of_variables)
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if isequal(list_of_variables(i).name,'freq') || isequal(list_of_variables(i).name,'time') || isequal(list_of_variables(i).name,'data') ...
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|| isequal(list_of_variables(i).name,'varlist') ...
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|| isequal(list_of_variables(i).name,'varlist0') ...
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|| isequal(list_of_variables(i).name,'list_of_variables') ...
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|| isequal(list_of_variables(i).name,'tex') ...
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continue
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end
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if list_of_variables(i).global || list_of_variables(i).persistent
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continue
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end
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if list_of_variables(i).complex || ~strcmp(list_of_variables(i).class,'double')
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continue
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end
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try
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eval(['data = [data, ' list_of_variables(i).name '];'])
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eval(['varlist = {varlist{:}, ''' list_of_variables(i).name '''};'])
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catch
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error(['load_m_file:: All the vectors (variables) in ' inputname(1) ' must have the same number of rows (observations)!'])
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end
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end
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else
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for i=1:length(varlist0)
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eval(['data = [data, ' varlist0{i} '];'])
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end
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varlist = varlist0;
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end
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%@test:1
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%$ % Create a data m-file
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%$ fid = fopen('data_m_file.m','w');
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%$ fprintf(fid,'FREQ__ = 4;');
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%$ fprintf(fid,'INIT__ = ''1938Q4'';');
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%$ fprintf(fid,'NAMES__ = {''azert'';''yuiop''};');
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%$ fprintf(fid,'TEX__ = {''azert'';''yuiop''};');
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%$ fprintf(fid,'azert = [1; 2; 3; 4; 5];');
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%$ fprintf(fid,'yuiop = [2; 3; 4; 5; 6];');
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%$ fclose(fid);
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%$
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%$ % Try to read the data m-file
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%$ try
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%$ datafile = 'data_m_file';
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%$ [freq,init,data,varlist,tex] = load_m_file_data(datafile);
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%$ t(1) = 1;
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%$ catch exception
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%$ t(1) = 0;
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%$ T = all(t);
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%$ LOG = getReport(exception,'extended');
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%$ return
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%$ end
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%$
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%$ % Check the results.
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%$ t(2) = dyn_assert(freq,4);
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%$ t(3) = dyn_assert(isa(init,'dates'),1);
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%$ t(4) = dyn_assert(init.freq,4);
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%$ t(5) = dyn_assert(init.time,[1938 4]);
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%$ t(6) = dyn_assert(varlist,{'azert';'yuiop'});
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%$ t(7) = dyn_assert(tex,{'azert';'yuiop'});
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%$ t(8) = dyn_assert(data(:,1),[1;2;3;4;5]);
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%$ t(9) = dyn_assert(data(:,2),[2;3;4;5;6]);
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%$ T = all(t);
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%@eof:1
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