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function lpkern = evaluate_posterior_kernel(parameters,llik)
% Evaluate the prior density at parameters.
%
% INPUTS
% o parameters a string ('posterior mode','posterior mean','posterior median','prior mode','prior mean') or a vector of values for
% the (estimated) parameters of the model.
%
%
% OUTPUTS
% o lpkern [double] value of the logged posterior kernel.
%
% SPECIAL REQUIREMENTS
% None
%
% REMARKS
% [1] This function cannot evaluate the prior density of a dsge-var model...
% [2] This function use persistent variables for the dataset and the description of the missing observations. Consequently, if this function
% is called more than once (by changing the value of parameters) the sample *must not* change.
% Copyright (C) 2009 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/>.
[ldens,parameters] = evaluate_prior(parameters);
if nargin==1
llik = evaluate_likelihood(parameters);
end
lpkern = ldens+llik;
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