Fig. 9

K-means clustering elbow plots. Elbow plots for the k-means clustering of the transposases nodes for the Crohn’s disease and healthy data set. The left plot (a) shows the within groups sum of squares for the Crohn’s disease data sets and the right plot (b) shows the sum of squares for the healthy data sets. The within sum of squares was much higher for the Crohn’s disease data sets versus the healthy data sets. The number of clusters for the Crohn’s disease data sets (20) and the healthy data sets (10) were chosen such that their sum of squares were roughly equivalent