loading an prepared Auto Regressive model in another for- loop

Hi all,

I've written a program which generate an one-order Auto Regressive modele AR(1), named ar_prmtr model here, for each month, i.e. t=1:12. The program is below:

        clc; clear; 
        inflow='inflow_23_YEAR.txt';        
        inflow=load(inflow); 

        for t=1:12

            q=inflow(:,t);
        %%%%%%GENERATION OF AUTO-REGRESSIVE MODEL 

            ar_prmtr= ar(q(:,t),1)
              present(ar_prmtr);
          end

I want to use constructed model named " ar_prmtr " for another loop. How can I load the " ar_prmtr " model ?

Any help would be appreciated.