Fig. 2

Correlation between depth of coverage in sequencing regions of benchmark dataset (chromosome 11). The figure presents the results of a multidimensional scaling [36] of the covariance matrix of the read count data for the 9599 investigated sequencing regions onto a two-dimensional plane. Each of the dots in the figure represents a sequencing region, the distance between the dots represents the correlation between the depth of coverage of the given sequencing regions. It is worth noticing that there is no clear division into groups; all sequencing regions constitute a relatively uniform and compact group of points. The figure was prepared by R’s cmdscale function.