Table 3.
Determination of gene set size using CV error rates
| Shrunken centroid Δ | Gene set | CV error rates |
Summative error rates | |
|---|---|---|---|---|
| IF | CCR | |||
| 3.00 | 202 | 0.00 | 0.28 | 1.28 |
| 3.25 | 116 | 0.00 | 0.23 | 1.23 |
| 3.50 | 63 | 0.03 | 0.24 | 1.27 |
| 3.75 | 48 | 0.06 | 0.22 | 1.28 |
| 4.00 | 14 | 0.17 | 0.31 | 1.48 |
A 116-member genomic classifier was selected on the basis of the following filtering criteria: 1) threshold centroid of at least 3.0; 2) lowest summative CV error rate for CCR, RE and IF groups; and, 3) for equivalent coefficient of variation (CV) error rates, the smallest gene set size. RE = 1.00 in all cases.