Is it possible to vectorize a loop if it uses past values? When iterations have a large number, simulation takes time to finish which i want to avoid. But i couldn't understand how to vectorize a loop when it has a past value.
N=100;iterations=20000;x=randn(1,N);x=[x zeros(1,iterations-N)];out=0;sig=zeros(1,length(x)+1);y=zeros(1,N+1);for i=1:iterations out=x(i) +0.5*(y(N)+y(N+1)); y=[out, y(1:length(y)-1)]; sig(i) =out;end
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