MATLAB: PCA for a vector such as [100-by-1]

pca

Is it reasonable to do a PCA on a vector? I've been using Matlab with this code:
[M,N] = size(A); mn = mean(A);
    A = A - repmat(mn,1,N);
    B = A'; [u,s,pc] = svd(B);
    S_diag = diag(S); V = S_diag .* S_diag;
    Aout = PC' * A;
and I got PC is a [100,100] matrix and principal component 1 is Aout(1,1), principal component 2 is Aout(2,1) and so on.
Not sure if this is correct. Please help and Thank you.

Best Answer

Yup. Consider transposing the vector.
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