Subscript indices must either be real positive integers or logicals.

I have this code

n=size(tickers,2);
tempo=90;
d=size(prices,1);
f=d-tempo;
meancoint=zeros(f,1);
M_coint=zeros(n,n);
for s=tempo+1:size(prices,1);
for i=1:n;
    for j=1:n;
        if i==j;
            M_coint(i,j)=0;
        else
    tmp=cadf(prices(s-tempo:s,i),prices((s-tempo:s),j,0,1));
    M_coint(i,j)=tmp.adf;
    meancoint(s)=sum(M_coint(:))/(n(n-1));
        end
    end
end
end

gives me this error: Subscript indices must either be real positive integers or logicals.

[Stephen23]

Can you please give us the complete error message, not just the bits that you find interesting. The complete error message include other useful information, such as detail of the operations and line where the error occurs. The complete error message is all of the red text.

You can edit your question to give this info.

Answer 1

[Walter Roberson]

Look more closely at

      tmp=cadf(prices(s-tempo:s,i),prices((s-tempo:s),j,0,1));

This is cadf() with first argument

prices(s-tempo:s,i)

and second argument

prices((s-tempo:s),j,0,1)

The first of those suggests that prices is intended to be a 2D array. The second of those suggests that prices is a 4D array and that you want the index of the third dimension to be 0.