MATLAB: Array indices must be positive integers or logical values error

array indices must be positive integers or logical values.MATLAB

I am trying to perform the following on MATLABIssue on matlab.PNG
However, I keep getting the error which says "Array indices must be positive integers or logical values error"
Please help. Here's my code:
nT=0
for n=0:10000 %part 5
    beta=alpha*sqrt(1-((2*n)/N-1)^2);
    if abs(n)<= (N-1)/2
        syms k x
            Ibeta=1+symsum((((1/factorial(k))*(beta/2)^k)^2),k,1,Inf)
            Ialpha=1+symsum((((1/factorial(k))*(alpha/2)^k)^2),k,1,Inf)
            wk(nT)=Ibeta/Ialpha
            nT=nT+1;
       
    else
        wk(nT)=0
        nT=nT+1;
    end
    n=n+1;
end
THIS IS THE ERROR I GET:
Array indices must be positive integers or logical values.
Error in DSPproj (line 25)
            wk(nT)=Ibeta/Ialpha

Best Answer

You initialize nT to 0. You access wk(nT) but nT is still 0.
You need to move the increments of nT to before you use nT as indices.
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