/usr/share/dynare/matlab/@dates/pop.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 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 | function B = pop(A,a) % --*-- Unitary tests --*--
% pop method for dates class (removes a date).
%
% INPUTS
% o A dates object.
% o a dates object with one element, string which can be interpreted as a date or integer scalar.
%
% OUTPUTS
% o B dates object (with B.ndat==A.ndat-1).
%
% REMARKS
% If a is a date appearing more than once in A, then only the last occurence is removed. If one wants to
% remove all the occurences of a in A, the setdiff function should be used instead.
% Copyright (C) 2012-2013 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 nargin<2
% Remove last date
B = dates();
B.ndat = A.ndat-1;
B.freq = A.freq;
B.time = NaN(B.ndat,2);
B.time = A.time(1:end-1,:);
return
end
if ~( isdates(a) || isdate(a) || (isscalar(a) && isint(a)) )
error(['dates::pop: Input argument ' inputname(2) ' has to be a dates object with a single element, a string (which can be interpreted as a date) or an integer.'])
end
if ischar(a)
a = dates(a);
end
B = dates();
B.ndat = A.ndat-1;
B.freq = A.freq;
B.time = NaN(B.ndat,2);
if isscalar(a) && isint(a)
idx = find(transpose(1:A.ndat)~=a);
B.time = A.time(idx,:);
else
if ~isequal(A.freq,a.freq)
error('dates::pop: Inputs must have common frequency!')
end
idx = find(A==a);
jdx = find(transpose(1:A.ndat)~=idx(end));
B.time = A.time(jdx,:);
end
%@test:1
%$ % Define some dates
%$ B1 = '1953Q4';
%$ B2 = '1950Q2';
%$ B3 = '1950Q1';
%$ B4 = '1945Q3';
%$ B5 = '2009Q2';
%$
%$ % Define expected results
%$ e.time = [1945 3; 1950 1; 1950 2; 1953 4; 2009 2];
%$ e.freq = 4;
%$ e.ndat = 5;
%$
%$ % Call the tested routine
%$ d = dates(B4,B3,B2,B1);
%$ d = d.append(dates(B5));
%$ f = d.pop();
%$ t(1) = dyn_assert(f.time,e.time(1:end-1,:));
%$ t(2) = dyn_assert(f.freq,e.freq);
%$ t(3) = dyn_assert(f.ndat,e.ndat-1);
%$ f = d.pop(B1);
%$ t(4) = dyn_assert(f.time,[1945 3; 1950 1; 1950 2; 2009 2]);
%$ t(5) = dyn_assert(f.freq,e.freq);
%$ t(6) = dyn_assert(f.ndat,e.ndat-1);
%$ f = d.pop(dates(B1));
%$ t(7) = dyn_assert(f.time,[1945 3; 1950 1; 1950 2; 2009 2]);
%$ t(8) = dyn_assert(f.freq,e.freq);
%$ t(9) = dyn_assert(f.ndat,e.ndat-1);
%$
%$ % Check the results.
%$ T = all(t);
%@eof:1
%@test:2
%$ % Define some dates
%$ B1 = '1950Q1';
%$ B2 = '1950Q2';
%$ B3 = '1950Q1';
%$ B4 = '1945Q3';
%$ B5 = '2009Q2';
%$
%$ % Call the tested routine
%$ d = dates(B1,B2,B3,B4);
%$ d = d.append(dates(B5));
%$ f = d.pop();
%$ t(1) = dyn_assert(isequal(f,dates(B1,B2,B3,B4)),1);
%$ f = d.pop(B1);
%$ t(2) = dyn_assert(isequal(f,dates(B1,B2,B4,B5)),1);
%$ g = f.pop(1);
%$ t(3) = dyn_assert(isequal(g,dates(B2,B4,B5)),1);
%$ T = all(t);
%@eof:2
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