Commit b51ba4ae authored by Stéphane Adjemian's avatar Stéphane Adjemian
Browse files

Added @dynDates/intersect function.

parent 9b16ee5f
function C = intersect(A,B)
%@info:
%! @deftypefn {Function File} {@var{C} =} intersect (@var{A},@var{B})
%! @anchor{@dynDates/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{dynDates} object.
%! @item B
%! @ref{dynDates} object.
%! @end table
%! @sp 2
%! @strong{Outputs}
%! @sp 1
%! @table @ @var
%! @item C
%! @ref{dynDates} 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,'dynDates') || ~isa(B,'dynDates')
error(['dynDates::plus: Input arguments ''' inputname(1) ''' and ''' inputname(2) ''' must be dynDates objects!'])
end
if eq(A,B)
C = A;
return
end
if ~isequal(A.freq,B.freq)
C = dynDates();
return
end
[tmp,ia,ib] = intersect(A.time,B.time,'rows');
C = dynDates();
if isempty(tmp)
return
end
C.freq = A.freq;
C.time = tmp;
C.ndat = rows(tmp);
%@test:1
%$ % Define some dynDates objects
%$ d1 = dynDate('1950Q1'):dynDate('1969Q4') ;
%$ d2 = dynDate('1960Q1'):dynDate('1969Q4') ;
%$ d3 = dynDate('1970Q1'):dynDate('1979Q4') ;
%$
%$ % Call the tested routine.
%$ c1 = intersect(d1,d2);
%$ c2 = intersect(d1,d3);
%$
%$ % Check the results.
%$ t(1) = dyn_assert(c1==d2,1);
%$ t(2) = dyn_assert(isempty(c2),1);
%$ T = all(t);
%@eof:1
\ No newline at end of file
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