2013-10-11 23:36:29 +02:00
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function C = compare_vectors(f, A, B) % --*-- Unitary tests --*--
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2013-10-10 16:56:42 +02:00
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% Performs lexicographical comparison of vectors.
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%
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% INPUTS
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% o f function handle: @lt, @gt, @le or @ge
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% o A vector of real numbers.
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% o B vector of real numbers.
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%
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% OUTPUTS
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% o C integer scalar, 1 or 0.
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%
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% REMARKS
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% o It is assumed that vectors A and B have the same number of 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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if ~isvector(A) || ~isvector(B)
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error('compare_vectors:: Input arguments a and b must be vectors!')
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end
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if ~isequal(length(A),length(B))
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error('compare_vectors_lt:: Input arguments a and b must be of same length!')
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end
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2013-10-11 13:38:19 +02:00
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fstr = func2str(f);
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if ~ismember(fstr, {'lt', 'gt', 'le', 'ge'})
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2013-10-10 16:56:42 +02:00
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error('compare_vectors:: First input argument must be one of the following function handles: @lt, @gt, @le or @ge!')
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end
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2013-10-11 13:38:19 +02:00
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strict_inequality = ismember(fstr, {'gt','lt'});
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2013-10-11 12:09:31 +02:00
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if isequal(length(A),1)
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if feval(f, A, B)
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C = 1;
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else
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C = 0;
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end
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2013-10-10 16:56:42 +02:00
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else
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2013-10-11 12:09:31 +02:00
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if feval(f, A(1), B(1))
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2013-10-11 13:38:19 +02:00
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if strict_inequality
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C = 1;
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else
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if isequal(A(1),B(1))
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C = compare_vectors(f, A(2:end), B(2:end));
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else
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C = 1;
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end
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end
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2013-10-11 12:09:31 +02:00
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else
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2013-10-11 13:38:19 +02:00
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if strict_inequality
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if isequal(A(1),B(1))
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C = compare_vectors(f, A(2:end), B(2:end));
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else
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C = 0;
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end
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else
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C = 0;
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end
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2013-10-11 12:09:31 +02:00
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end
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2013-10-10 16:56:42 +02:00
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end
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%@test:1
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%$ t(1) = dyn_assert(compare_vectors(@lt, [1990 3], [1991 3]), 1);
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%$ t(2) = dyn_assert(compare_vectors(@lt, [1990 3], [1990 3]), 0);
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%$ t(3) = dyn_assert(compare_vectors(@le, [1990 3], [1990 3]), 1);
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2013-10-11 13:39:16 +02:00
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%$ t(4) = dyn_assert(compare_vectors(@lt, [1990 3], [1990 4]), 1);
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%$ t(5) = dyn_assert(compare_vectors(@le, [1990 3], [1990 4]), 1);
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%$ t(6) = dyn_assert(compare_vectors(@gt, [1990 3], [1991 3]), 0);
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%$ t(7) = dyn_assert(compare_vectors(@gt, [1990 3], [1990 3]), 0);
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%$ t(8) = dyn_assert(compare_vectors(@ge, [1990 3], [1990 3]), 1);
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%$ t(9) = dyn_assert(compare_vectors(@gt, [1990 3], [1990 4]), 0);
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%$ t(10) = dyn_assert(compare_vectors(@ge, [1990 3], [1990 4]), 0);
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%$ t(11) = dyn_assert(compare_vectors(@le, [1991 3], [1990 4]), 0);
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%$ t(12) = dyn_assert(compare_vectors(@le, [1991 3], [1990 2]), 0);
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%$ t(13) = dyn_assert(compare_vectors(@le, [1945 2], [1950, 1]),1);
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2013-10-10 16:56:42 +02:00
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%$ T = all(t);
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%@eof:1
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