Table 2. Cross-validation performance of microRNA expression based on predictors of the four binary molecular classifications (Splits 1–4).
| Split 1 | g0 (predicted$) | g1 (predicted$) | Error rate& | Split 2 | g0 (predicted$) | g1 (predicted$) | Error rate& |
| g0 (true*) | 80 | 16 | 0.167 | g0 (true*) | 71 | 12 | 0.14 |
| g1 (true*) | 3 | 30 | 0.091 | g1 (true*) | 17 | 29 | 0.37 |
*True labels of the 4 independent classifications identified by mRNA expression profiling.
$
Labels of the 4 independent classifications identified by miRNA expression profiling.
&
Unbiased estimate of error rate of classifiers predicting Splits 1–4 from miRNA expression profiles.
The contingency tables show numbers of samples in groups defined by Splits 1–4 and predicted from miRNA expression.