Figure 3

Cross-checking for the phenotype methanogenesis. The classification quality diagrams for nearest neighbor classifier (IB1) and the naïve Bayes classifier show that the identified most relevant pathways are well suited to distinguish methanogens and non-methanogens (sensitivity × selectivity = 1.0). According to the cross-check, the most relevant pathways identified by pathway selection are considered as significant. Apart from using ReliefF top-ranking pathways (green) for the classification with IB1, the maximum classification quality is already reached for the (up to) five most relevant pathways (these pathways are listed in Table 1).