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Added routines for manipulating dates.

time-shift
Stéphane Adjemian (Charybdis) 2013-10-12 23:42:12 +02:00
parent ff53b55603
commit 586aa13e41
3 changed files with 125 additions and 0 deletions
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51
matlab/utilities/dates/date2string.m Normal file
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function s = date2string(varargin)
% Returns date as a string.
%
% INPUTS
% o varargin{1} + dynDates object with one element, if nargin==1.
% + 1*2 vector of integers (first element is the year, second element is the subperiod), if nargin==2.
% o varargin{2} integer scalar equal to 1, 4, 12 or 52 (frequency).
%
% OUTPUTS
% o s string.
% Copyright (C) 2013 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/>.
if isequal(nargin,1)
if ~(isa(varargin{1},'dynDates') && isequal(length(varargin{1}),1))
error(['dynDates::format: Input argument ' inputname(1) ' has to be a dynDates object with one element!'])
else
time = varargin{1}.time;
freq = varargin{1}.freq;
end
end
if isequal(nargin,2)
if ~(isvector(varargin{1}) && isequal(length(varargin{1}),2) && all(isint(varargin{1})) && isscalar(varargin{2} && ismember(varargin{2},[1 4 12 52])))
error(['dynDates::format: First input must be a 1*2 vector of integers and second input must be a scalar integer (1, 4, 12 or 52)!'])
else
time = varargin{1};
freq = varargin{2};
end
end
s = [num2str(time(1)) freq2string(freq)];
if freq>1
s = strcat(s, num2str(time(2)));
end

37
matlab/utilities/dates/freq2string.m Normal file
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function s = freq2string(freq)
% INPUTS
% o freq scalar integer, equal to 1, 4, 12 or 52 (resp. annual, quaterly, monthly or weekly)
%
% OUTPUTS
% o s character, equal to Y, Q, M or W (resp. annual, quaterly, monthly or weekly)
% Copyright (C) 2013 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/>.
switch freq
case 1
s = 'Y';
case 4
s = 'Q';
case 12
s = 'M';
case 52
s = 'W';
otherwise
error('dynDates::freq2string: Unknown frequency!')
end

37
matlab/utilities/dates/string2freq.m Normal file
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function freq = string2freq(s)
% INPUTS
% o s character, equal to Y, Q, M or W (resp. annual, quaterly, monthly or weekly)
%
% OUTPUTS
% o freq scalar integer, equal to 1, 4, 12 or 52 (resp. annual, quaterly, monthly or weekly)
% Copyright (C) 2013 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/>.
switch s
case 'Y'
freq = 1;
case 'Q'
freq = 4;
case 'M'
freq = 12;
case 'W'
freq = 52;
otherwise
error('dynDates::freq2string: Unknown frequency!')
end