Fig. 3
The complement from union function within GListCompare. First, a union of two or more lists is calculated that includes the sample-specific list T1. In this example, this list is T1 ∪ T2. Typically, this union will include k-mers from many species or strains. Next, we find the intersection between T1 and this composite union. We define this as the intersection that only includes k-mers that have the same count in both lists. The result is a list of k-mers that are unique to T1. Note that in this case the resulting list is the same as that calculated using the complement function in the example given in Fig. 2