Some peaks called only by the other three methods and an example of a peak called by BayesPeak. In this figure, there are three regions (labelled 1, 2, 3) that BayesPeak did not identify as peaks that the three other algorithms did. The plots show the first 32 bases of each fragment, the ones corresponding to the forward strand in red and the reverse strand in blue. In addition, we include an image of a peak that was called by our method to show how the shape compares with the others. The images were generated using the UCSC genome browser.