The positional weight of PDEGEM in 8 different samples of Dataset 1. We chose 40 surrounding nucleotides (20 upstream and 19 downstream) to fit the model. The x-axis is the relative position around the starting point of a read. The y-axis indicates the positional weight. Red lines (w1, w2, w3) represent Wold data, green lines (b1, b2, and b3) for Burge Data and blue lines (g1 and g2) for Grimmond data.