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
|
function [pnames, enames, xnames, pid, eid, xid] = get_variables_and_parameters_in_equation(lhs, rhs, M_)
% [pnames, enames, xnames, pid, eid, xid] = get_variables_and_parameters_in_equation(lhs, rhs, M_)
% Returns the lists of parameters, endogenous variables and exogenous variables in an equation.
%
% INPUTS
% - lhs [string] Left hand side of an equation.
% - rhs [string] Right hand side of an equation.
% - M_ [struct] Structure describing the current model.
%
% OUTPUTS
% - pnames [cell] Cell of row char arrays (p elements), names of the parameters.
% - enames [cell] Cell of row char arrays (n elements), names of the endogenous variables.
% - xnames [cell] Cell of row char arrays (m elements), names of the exogenous variables.
% - pid [Integer] p*1 vector of indices in M_.param_names for the listed parameters in params.
% - eid [Integer] n*1 vector of indices in M_.endo_names for the listed parameters in endogenous.
% - xid [Integer] m*1 vector of indices in M_.exo_names for the listed parameters in exogenous.
% Copyright © 2018-2023 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/>.
% Get the tokens in the rhs member of the equation.
rhs_ = get_variables_and_parameters_in_expression(rhs);
% Get the tokens in the lhs member of the equation.
lhs_ = get_variables_and_parameters_in_expression(lhs);
% Get list of parameters.
pnames = M_.param_names;
pnames = intersect([rhs_, lhs_], pnames);
if nargout>1
% Get list of endogenous variables.
enames = M_.endo_names;
enames = intersect([rhs_, lhs_], enames);
if nargout>2
% Get list of exogenous variables
xnames = M_.exo_names;
xnames = intersect([rhs_,lhs_], xnames);
if nargout>3
% Returns vector of indices for parameters endogenous and exogenous variables if required.
p = length(pnames);
pid = zeros(p, 1);
for i = 1:p
pid(i) = find(strcmp(pnames{i}, M_.param_names));
end
p = length(enames);
eid = zeros(p, 1);
for i = 1:p
eid(i) = find(strcmp(enames{i}, M_.endo_names));
end
p = length(xnames);
xid = zeros(p, 1);
for i = 1:p
xid(i) = find(strcmp(xnames{i}, M_.exo_names));
end
end
end
end
|
