Subscript indices must either be real positive integers or logicals.

Question

fede 2015-11-4

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https://ww2.mathworks.cn/matlabcentral/answers/252740-subscript-indices-must-either-be-real-positive-integers-or-logicals

关闭： MATLAB Answer Bot 2021-8-20

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.

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Stephen23 2015-11-4

编辑：Stephen23 2015-11-4

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.

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Answer 1

Walter Roberson 2015-11-4

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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.