78 lines
2.0 KiB
Matlab
78 lines
2.0 KiB
Matlab
function B = uminus(A) % --*-- Unitary tests --*--
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% Overloads the unary minus operator for dates objects. Shifts all the elements by one period.
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%
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% INPUTS
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% o A dates object with n elements.
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%
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% OUTPUTS
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% o B dates object with n elements.
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% Copyright (C) 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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B = dates(A);
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B.time(:,2) = B.time(:,2)-1;
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idx = find(B.time(:,2)==0);
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B.time(idx,1) = B.time(idx,1)-1;
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B.time(idx,2) = B.freq;
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%@test:1
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%$ % Define some dates
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%$ date_1 = '1950Y';
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%$ date_2 = '1950Q2';
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%$ date_3 = '1950Q1';
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%$ date_4 = '1950M2';
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%$ date_5 = '1950M1';
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%$
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%$ % Call the tested routine.
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%$ d1 = dates(date_1); d1 = -d1;
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%$ d2 = dates(date_2); d2 = -d2;
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%$ d3 = dates(date_3); d3 = -d3;
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%$ d4 = dates(date_4); d4 = -d4;
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%$ d5 = dates(date_5); d5 = -d5;
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%$ i1 = (d1==dates('1949Y'));
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%$ i2 = (d2==dates('1950Q1'));
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%$ i3 = (d3==dates('1949Q4'));
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%$ i4 = (d4==dates('1950M1'));
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%$ i5 = (d5==dates('1949M12'));
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%$
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%$ % Check the results.
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%$ t(1) = dyn_assert(i1,1);
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%$ t(2) = dyn_assert(i2,1);
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%$ t(3) = dyn_assert(i3,1);
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%$ t(4) = dyn_assert(i4,1);
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%$ t(5) = dyn_assert(i5,1);
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%$ T = all(t);
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%@eof:1
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%@test:2
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%$ d1 = dates('1950Q1','1950Q2','1950Q3','1950Q4','1951Q1');
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%$ d2 = dates('1949Q4','1950Q1','1950Q2','1950Q3','1950Q4');
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%$ try
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%$ d3 = -d1;
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%$ t(1) = 1;
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%$ catch
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%$ t(1) = 0;
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%$ end
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%$
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%$ if t(1)
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%$ t(2) = dyn_assert(all(d2==d3),1);
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%$ end
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%$
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%$ T = all(t);
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%@eof:2 |