Figure 4
From: A systematic search for discriminating sites in the 16S ribosomal RNA gene
Entropy of selected sites. The left panel shows that mean entropy of the selected sites compared to random samples. The vertical red bar marks the mean entropy of the 50 selected sites, at 1.23. The histogram is constructed by sampling 50 random positions, computing their mean entropy, and repeating this 10 000 times. The right panel shows the mean difference between the entropy of a selected site and its 20 neighbors (10 on each side). Again the red bar marks this difference for the 50 selected sites and the histogram displays the same difference for 50 sites sampled at random, repeated 10 000 times. This figure is based on the Greengenes data, but the RDP and SILVA data gave similar results.