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
|
function [fval, fjac] = variablydimensioned(x)
% Copyright © 2021 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 <https://www.gnu.org/licenses/>.
n = length(x);
if isnumeric(x) && isvector(x) && all(~isnan(x))
fval = zeros(n, 1);
sum = 0;
for j=1:n
sum = sum+j*(x(j)-1);
end
tmp = sum*(1+2*sum*sum);
for k=1:n
fval(k) = x(k)-1+k*tmp;
end
if nargout>1
fjac = zeros(n);
sum = 0;
for j=1:n
sum = sum + j*(x(j)-1);
end
tmp = 1+6*sum*sum;
for k=1:n
for j=1:n
fjac(k,j) = k*j*tmp;
fjac(j,k) = fjac(k,j);
end
fjac(k,k) = fjac(k,k)+1;
end
end
elseif isnumeric(x) && isvector(x) && all(isnan(x))
if nargout==1
h = 1.0/n;
fval = zeros(n, 1);
for j=1:n
fval(j) = 1-j*h;
end
else
error('One output is required for initialization mode.')
end
else
error('Wrong input argument.')
end
|
