1function o = log_(o) % --*-- Unitary tests --*--
2
3% Apply the logarithm to all the variables in a dseries object (in place modification).
4%
5% INPUTS
6% - o [dseries]
7%
8% OUTPUTS
9% - o [dseries]
10
11% Copyright (C) 2011-2017 Dynare Team
12%
13% This file is part of Dynare.
14%
15% Dynare is free software: you can redistribute it and/or modify
16% it under the terms of the GNU General Public License as published by
17% the Free Software Foundation, either version 3 of the License, or
18% (at your option) any later version.
19%
20% Dynare is distributed in the hope that it will be useful,
21% but WITHOUT ANY WARRANTY; without even the implied warranty of
22% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
23% GNU General Public License for more details.
24%
25% You should have received a copy of the GNU General Public License
26% along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
27
28% Ensure that we never return a complex number (rather return a NaN)
29o.data(find(o.data < 0)) = NaN;
30
31o.data = log(o.data);
32
33for i=1:vobs(o)
34    if isempty(o.ops{i})
35        o.ops(i) = {sprintf('log(%s)', o.name{i})};
36    else
37        o.ops(i) = {sprintf('log(%s)', o.ops{i})};
38    end
39end
40
41%@test:1
42%$ % Define a dates object
43%$ data = ones(10,2);
44%$ o = dseries(data);
45%$ q = o;
46%$ r = copy(o);
47%$
48%$ % Call the tested routine.
49%$ try
50%$     o.log_();
51%$     t(1) = true;
52%$ catch
53%$     t(1) = false;
54%$ end
55%$
56%$ if t(1)
57%$      t(2) = dassert(o.data, zeros(10,2));
58%$      t(3) = dassert(q.data, zeros(10,2));
59%$      t(4) = dassert(r.data, ones(10, 2));
60%$ end
61%$
62%$ T = all(t);
63%@eof:1
64
65%@test:2
66%$ % Define a dates object
67%$ data = ones(10,2);
68%$ o = dseries(data);
69%$ q = o;
70%$ r = copy(o);
71%$
72%$ % Call the tested routine.
73%$ try
74%$     o.log_();
75%$     t(1) = true;
76%$ catch
77%$     t(1) = false;
78%$ end
79%$
80%$ if t(1)
81%$      t(2) = dassert(length(o.name), 2);
82%$      t(3) = dassert(o.name{1},'Variable_1');
83%$      t(4) = dassert(o.name{2},'Variable_2');
84%$      t(5) = dassert(q.name{1},'Variable_1');
85%$      t(6) = dassert(q.name{2},'Variable_2');
86%$      t(7) = dassert(r.name{1},'Variable_1');
87%$      t(8) = dassert(r.name{2},'Variable_2');
88%$      t(9) = dassert(o.ops{1},'log(Variable_1)');
89%$      t(10) = dassert(o.ops{2},'log(Variable_2)');
90%$      t(11) = dassert(q.ops{1},'log(Variable_1)');
91%$      t(12) = dassert(q.ops{2},'log(Variable_2)');
92%$      t(13) = isempty(r.ops{1});
93%$      t(14) = isempty(r.ops{2});
94%$ end
95%$
96%$ T = all(t);
97%@eof:2