plot_priors.m: Allow for optional title

matlab/plot_priors.m

-function plot_priors(bayestopt_,M_,estim_params_,options_)
+function plot_priors(bayestopt_,M_,estim_params_,options_,optional_title)
 % function plot_priors
 % plots prior density
 %
 % INPUTS
-%    o bayestopt_  [structure]
-%    o M_          [structure]
-%    o options_    [structure]
-%
+%    o bayestopt_       [structure]
+%    o M_               [structure]
+%    o estim_params_    [structure]
+%    o options_         [structure]
+%    o optional_title   [string]
+
 % OUTPUTS
 %    None
 %
 % SPECIAL REQUIREMENTS
 %    None
 
-% Copyright (C) 2004-2017 Dynare Team
+% Copyright (C) 2004-2020 Dynare Team
 %
 % This file is part of Dynare.
 %
@@ -31,8 +33,11 @@ function plot_priors(bayestopt_,M_,estim_params_,options_)
 % along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 
 TeX = options_.TeX;
-
-figurename = 'Priors';
+if nargin<5
+    figurename = 'Priors';
+else
+    figurename = optional_title;
+end
 npar = length(bayestopt_.p1);
 [nbplt,nr,nc,lr,lc,nstar] = pltorg(npar);