Table 2.
Mean error rate percentage using 10-CV (10 validation trials) obtained on both datasets X*Z together
| Gene selection | t-test (1) | RF (2) | sPLS (3) | |
|---|---|---|---|---|
| Prostate | PLS-RF | 28.98 (4.16) | ||
| cforest | 24.65 (4.91) | |||
| multinom | 27.09 (2.47) | 26.33 (3.03) | 26.96 (4.74) | |
| ME-indep | 29.24 (4.44) | 28.86 (5.53) | 31.64 (3.48) | |
| ME-multinom | 26.32 (4.77) | 25.82 (4.74) | 27.59 (5.62) | |
| ME-loc | 25.44 (3.70) | 26.83 (2.44) | 23.54 (2.61) | |
| Breast | PLS-RF | 28.20 (1.86) | ||
| cforest | 31.15 (1.60) | |||
| multinom | 27.89 (1.69) | 31.33 (1.53) | 28.59 (2.02) | |
| ME-indep | 27.81 (1.47) | 30.19 (1.73) | 27.77 (1.28) | |
| ME-multinom | 27.65 (1.45) | 29.88 (1.80) | 27.89 (1.46) | |
| ME-loc | 27.85 (1.51) | 29.92 (1.25) | 27.26 (1.16) | |
| CNS | PLS-RF | 38.68 (2.18) | ||
| cforest | 38.33 (6.90) | |||
| multinom | 33.67 (5.49) | 36.83 (7.51) | 37.17 (4.16) | |
| ME-indep | 43.83 (6.5) | 42.81 (6.57) | 41.83 (4.81) | |
| ME-multinom | 33.00 (6.08) | 39.67 (6.08) | 35.67 (6.34) | |
| ME-loc | 31.67 (6.98) | 35.16 (5.63) | 35.33 (5.37) |
Classification performances which were as good or better than X* or Z alone (see Table 1) are indicated in bold (p* = 5).