Figure 3From: Reducing the false positive rate in the non-parametric analysis of molecular coevolutionTest of the improvement of the percentage of positive values (PPV) detected and sensitivity (SN) when we add filters to the detection of coevolution. The X-axis represents the different filters (1 = parsimony, 2 = hydrophobicity and 3 = molecular weight). Y-axis represents PPV (a) or SN (b). The comparison of each filter against filtering by parsimony was always significant (* indicates P < 0.01).Back to article page