Fig. 3
Two illustrative examples of the disjoint MST subtrees. (1) The MST of the pooled samples of X, Y ~ N(0 p×1,I p×p ) (H 0 is true) is shown in panel a and its 27 disjoint subtrees (R = 27) are shown in panel b; (2) The MST of the pooled samples of X ~ N(0 p×1,I p×p ) and Y ~ N(1 p×1,I p×p ) (H 1 is true) is shown in panel c and its 3 disjoint subtrees (R = 3) are shown in panel d