53 lines
1.7 KiB
Matlab
53 lines
1.7 KiB
Matlab
function y = log_variable(ivar,x,M)
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% returns the log of an endogenous variables except if
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% it is a lagged/leaded exogenous variable
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%
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% INPUT
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% ivar: vector of variable indices (in declaration order)
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% x: vector of variables value
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% M: model structure
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%
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% OUTPUT
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% y: log of the selected variables if there are not auxiliary variables
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% for lagged/leaded exogenous variables
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%
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% Copyright (C) 2011-2016 Dynare Team
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%
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% This file is part of Dynare.
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%
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% Dynare is free software: you can redistribute it and/or modify
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% it under the terms of the GNU General Public License as published by
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% the Free Software Foundation, either version 3 of the License, or
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% (at your option) any later version.
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%
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% Dynare is distributed in the hope that it will be useful,
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% but WITHOUT ANY WARRANTY; without even the implied warranty of
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% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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% GNU General Public License for more details.
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%
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% You should have received a copy of the GNU General Public License
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% along with Dynare. If not, see <http://www.gnu.org/licenses/>.
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orig_endo_nbr = M.orig_endo_nbr;
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aux_vars = M.aux_vars;
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y = zeros(length(ivar),1);
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for i = 1:length(ivar)
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% Does ivar(i) refer to a lag/lead exogenous variable?
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if ivar(i) > orig_endo_nbr
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av = aux_vars(ivar(i) - orig_endo_nbr);
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if av.type == 2 || av.type == 3
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if av.endo_index ~= ivar(i)
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error(['This case shouldn''t happen. Please, contact Dynare ' ...
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'developers'])
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else
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y(i) = x(ivar(i));
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end
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else
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y(i) = log(x(ivar(i)));
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end
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else
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y(i) = log(x(ivar(i)));
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end
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end |