Figure 1

Distributions of Jaccard coefficients, for a number of clusters ranging from k = 2 to k = 8, derived from 100 independent random samplings of tumors. Distributions were presented only if Pearson correlation coefficient and Ward's method were used. The proportion of samples used for re-sampling was 0.7. For k = 2 clusters, the largest proportion of values near one indicated that tumors set up two stable clusters.