How to access the variables in the for loop?

I need to be able to plot the error from this LPC analysis filter but it doesn't let me access it because it is in the loop. Is there anyway to be able to access it?

sound = audiorecorder(8000,16,1);

disp('Start speaking.');
recordblocking(sound,5);
disp('End of Recording.');

M = 10; 
seg = 240; 

if (size(x,2) == 1) 
    x = x';
end

npts = length(x); 
nseg = floor(npts/seg); 

for each = 1:nseg
    xx = x((each - 1)*seg + [1:seg]);   
    [a,G] = lpc(xx, M); 
    e = filter(a,1,xx); 
    G = sqrt(G); 
    e = e/G; 
    parameter(each,:) = a;
    gain(each) = G;
    error((each - 1)*seg + [1:seg]) = e;
end

Answer 1

[Walter Roberson]

It is not clear to me why you cannot plot e inside the loop?

Create an animatedline() object before the loop.

Inside the loop, create a time vector which is the indices that you used in the line

    xx = x((each - 1)*seg + [1:seg]);   

but subtract 1, and then divide by the sampling frequency (8000 in this case.) Now you can

 addPoints(t, e)