hmm_Single_Average

This feature groups together rows that are related to the same amino acid. This is done using a vector $SA(k)$, in which $k$ spans $1:400$ and $SA(k) = avg_{i = 1, 2... L}H[i, j] \times \delta(P(i), A(z))$, in which $H$ is the HMM matrix, $P$ in the protein sequence, $A$ is an ordered set of amino acids, the variables $j, z = 1:20$, the variable $k = j + 20 \times (z-1)$ when creating the vector, and $\delta()$ represents Kronecker's delta.