Saving a variable in a .mat file

Question

GCats 2020-8-23

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/583289-saving-a-variable-in-a-mat-file

回答： Dinesh Yadav 2020-8-25

Hello everyone,

I have a .m file where a function runs and outputs a series of variables. Right now, I am saving one values out of the if loop in the said function as such:

function [par, ta, xa] = swingup(par)
    if strcmp(par.run_type, 'learn')
        ...
        ra = zeros(par.trials, 1);
        ...
        
        for ii = 1:par.trials        
            x = swingup_initial_state();
            
            for tt = 1:ceil(par.simtime/par.simstep)
               
                ...
                    
                r = observe_reward(a, sP, par);
                ...  
                
                % Keep track of cumulative reward
                reward = r;
                ra(ii) = ra(ii)+reward;
                
                % TODO: check termination condition
                if is_terminal(s,par) == 1 
                    break;
                end         
            end
        end
        
        save('swingup', 'ra');
        
        

In the end, I am interested in saving 'ra' while changing some of the values which 'ra' depends on. So for example changing some values in 'par'. So what I want to achieve is: