/usr/share/dynare/matlab/@dates/intersect.m is in dynare-common 4.4.1-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 | function C = intersect(A,B) % --*-- Unitary tests --*--
%@info:
%! @deftypefn {Function File} {@var{C} =} intersect (@var{A},@var{B})
%! @anchor{@dates/intersect}
%! @sp 1
%! C of B and A.
%! if A and B are not disjoints.
%! @sp 2
%! @strong{Inputs}
%! @sp 1
%! @table @ @var
%! @item A
%! @ref{dates} object.
%! @item B
%! @ref{dates} object.
%! @end table
%! @sp 2
%! @strong{Outputs}
%! @sp 1
%! @table @ @var
%! @item C
%! @ref{dates} object.
%! @end table
%! @end deftypefn
%@eod:
% 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 ~isa(A,'dates') || ~isa(B,'dates')
error(['dates::plus: Input arguments ''' inputname(1) ''' and ''' inputname(2) ''' must be dates objects!'])
end
if eq(A,B)
C = A;
return
end
if ~isequal(A.freq,B.freq)
C = dates();
return
end
if isoctave || matlab_ver_less_than('8.1.0')
time = intersect(A.time,B.time,'rows');
else
time = intersect(A.time,B.time,'rows','legacy');
end
C = dates();
if isempty(time)
return
end
C.freq = A.freq;
C.time = time;
C.ndat = rows(time);
%@test:1
%$ % Define some dates objects
%$ d1 = dates('1950Q1'):dates('1969Q4') ;
%$ d2 = dates('1960Q1'):dates('1969Q4') ;
%$ d3 = dates('1970Q1'):dates('1979Q4') ;
%$
%$ % Call the tested routine.
%$ c1 = intersect(d1,d2);
%$ c2 = intersect(d1,d3);
%$
%$ % Check the results.
%$ t(1) = dyn_assert(isequal(c1,d2),1);
%$ t(2) = dyn_assert(isempty(c2),1);
%$ T = all(t);
%@eof:1
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