Fig. 2

Detecting coevolving alignment columns is easier when individual alignment columns have similar levels of variation. Column pairs in the HisKA-RR sub-alignments are parsed according to above- or below- median entropy for each size alignment size (number of sequences: N). Left: Median precision (PPV) at FPR < 0.1 %. Right: Median power (TPR) at FPR < 5 %. See Abbreviations and Table 1 for abbreviations