Table 2.
Iterative feature ranking. The table gives the results of the iterative forward search. The 2nd column shows the percentage of information in the input vector compared to the entropy of the target. The 3rd column gives the values for single features and the 4th column the rank of the single features among all features. Feature names [see Additional file 2]: 1. total.rna.ratio 2. fr28s.height 3. fr28s.area.ratio 4. ratio1828.fast 5. reg5s.endval 6. fast.area.ratio 7. fr18s.found 8. all.mean.median
| Step | MI(X,T)/H(T) (Combination) | MI(Xi,T)/H(T) (single feature) | Rank of single feature |
| 1 | 0.79 | 0.79 | 1 |
| 2 | 0.79 | 0.50 | 38 |
| 3 | 0.81 | 0.74 | 3 |
| 4 | 0.83 | 0.55 | 19 |
| 5 | 0.83 | 0.46 | 51 |
| 6 | 0.85 | 0.60 | 10 |
| 7 | 0.85 | 0.47 | 48 |
| 8 | 0.86 | 0.50 | 39 |