120 lines
3.4 KiB
Matlab
120 lines
3.4 KiB
Matlab
function [freq,init,data,varlist,tex] = load_mat_file_data(file)
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% Loads data in a matlab/octave mat-file.
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%
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% INPUTS
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% o file string, name of the matlab/octave mat file (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 binary file. 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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datafile = load(file);
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if isfield(datafile,'INIT__')
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if isdate(datafile.INIT__)
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init = dates(datafile.INIT__);
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datafile = rmfield(datafile, 'INIT__');
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else
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error('load_mat_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);
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end
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if isfield(datafile,'FREQ__')
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freq = datafile.FREQ__;
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datafile = rmfield(datafile, '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_mat_file_data: INIT__ and FREQ__ are not consistent!')
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end
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if isfield(datafile,'NAMES__')
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varlist = datafile.NAMES__;
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datafile = rmfield(datafile, 'NAMES__');
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else
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varlist = [];
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end
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if isfield(datafile,'TEX__')
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tex = datafile.TEX__;
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datafile = rmfield(datafile, 'TEX__');
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else
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tex = [];
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end
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data = [];
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if isempty(varlist)
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varlist = fieldnames(datafile);
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end
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for i=1:length(varlist)
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try
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data = [data, getfield(datafile,varlist{i})];
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catch
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error(['load_mat_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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%@test:1
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%$ % Create a data mat-file
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%$ FREQ__ = 12;
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%$ INIT__ = '1938M11';
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%$ NAMES__ = {'hagop'; 'bedros'};
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%$ TEX__ = NAMES__;
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%$ hagop = [1; 2; 3; 4; 5];
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%$ bedros = [2; 3; 4; 5; 6];
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%$ save('datafile_for_test');
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%$
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%$ % Try to read the data mat-file
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%$ t = zeros(8,1);
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%$ try
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%$ [freq,init,data,varlist,tex] = load_mat_file_data('datafile_for_test');
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%$ t(1) = 1;
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%$ catch exception
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%$ t = t(1);
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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,12);
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%$ t(3) = dyn_assert(isa(init,'dates'),1);
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%$ t(4) = dyn_assert(init.freq,12);
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%$ t(5) = dyn_assert(init.time,[1938 11]);
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%$ t(6) = dyn_assert(varlist,{'hagop';'bedros'});
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%$ t(7) = dyn_assert(varlist,{'hagop';'bedros'});
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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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