- /**
- * Computes an NxN matrix where N is the number of sequences, and entry [i, j]
- * is sequence[i] pairwise multiplied with sequence[j], as a sum of scores
- * computed using the current score matrix. For example
- * <ul>
- * <li>Sequences:</li>
- * <li>FKL</li>
- * <li>RSD</li>
- * <li>QIA</li>
- * <li>GWC</li>
- * <li>Score matrix is BLOSUM62</li>
- * <li>product [0, 0] = F.F + K.K + L.L = 6 + 5 + 4 = 15</li>
- * <li>product [2, 1] = R.R + S.S + D.D = 5 + 4 + 6 = 15</li>
- * <li>product [2, 2] = Q.Q + I.I + A.A = 5 + 4 + 4 = 13</li>
- * <li>product [3, 3] = G.G + W.W + C.C = 6 + 11 + 9 = 26</li>
- * <li>product[0, 1] = F.R + K.S + L.D = -3 + 0 + -3 = -7
- * <li>and so on</li>
- * </ul>
- */
- MatrixI computePairwiseScores()
- {
- double[][] values = new double[seqs.length][];
- for (int row = 0; row < seqs.length; row++)
- {
- values[row] = new double[seqs.length];
- for (int col = 0; col < seqs.length; col++)
- {
- int total = 0;
- int width = Math.min(seqs[row].length(), seqs[col].length());
- for (int i = 0; i < width; i++)
- {
- char c1 = seqs[row].charAt(i);
- char c2 = seqs[col].charAt(i);
- int score = scoreMatrix.getPairwiseScore(c1, c2);
- total += score;
- }
- values[row][col] = total;
- }
- }
- return new Matrix(values);
- }
-