Sample | Amino acid residue | Total | |||||
---|---|---|---|---|---|---|---|
1 | 2 | … | j | … | 20 | ||
Positive | \( {f}_{i,1}^{+} \) | \( {f}_{i,2}^{+} \) | … | \( {f}_{i,j}^{+} \) | … | \( {f}_{i,20}^{+} \) | \( {f}_i^{+} \) |
Negative | \( {f}_{i,1}^{-} \) | \( {f}_{i,2}^{-} \) | … | \( {f}_{i,j}^{-} \) | … | \( {f}_{i,20}^{-} \) | \( {f}_i^{-} \) |
Total | fi, 1 | fi, 2 | … | fi, j | … | fi, 20 | N |