when varlist=0, we only compute decomposition and return restuls in oo_...

when varlist=0, we only compute decomposition and return restuls in oo_ without plotting. useful when squeezed oo_ misses initval decomp for requested variables.

matlab/initial_condition_decomposition.m

@@ -62,8 +62,10 @@ if isempty(varlist)
     varlist = M_.endo_names(1:M_.orig_endo_nbr);
 end
 
+if ~isequal(varlist,0)
     [i_var, nvar, index_uniques] = varlist_indices(varlist, M_.endo_names);
     varlist = varlist(index_uniques);
+end
 
 % number of variables
 endo_nbr = M_.endo_nbr;
@@ -83,7 +85,7 @@ if isempty(parameter_set)
     end
 end
 
-if ~isfield(oo_,'initval_decomposition')
+if ~isfield(oo_,'initval_decomposition') || isequal(varlist,0)
     options_.selected_variables_only = 0; %make sure all variables are stored
     options_.plot_priors=0;
     [oo,M,~,~,Smoothed_Variables_deviation_from_mean] = evaluate_smoother(parameter_set,varlist,M_,oo_,options_,bayestopt_,estim_params_);
@@ -129,9 +131,12 @@ if ~isfield(oo_,'initval_decomposition')
 
     end
 
-
     oo_.initval_decomposition = z;
 end
+
+% when varlist==0, we only store results in oo_ and do not make any plot
+if ~isequal(varlist,0)
+    
     % if ~options_.no_graph.shock_decomposition
     oo=oo_;
     oo.shock_decomposition = oo_.initval_decomposition;
@@ -152,4 +157,4 @@ options_.plot_shock_decomp.use_shock_groups = '';
     options_.plot_shock_decomp.init_cond_decomp = 1; % private flag to plotting utilities
     
     plot_shock_decomposition(M_,oo,options_,varlist);
-% end
+end