Identifying and Assessing Interesting Subgroups in a Heterogeneous Population

Figure 4

(a) Each permutation contributes a single gray line. The solid black line is the average of 100 permutations. (b) shows singular values from the singular value decomposition (SVD) of , and the dots in (c) and (d) are the components of the singular vectors generated by the SVD, and the solid lines are robust smoothing curves.

(a) Total variability

(b) Singular values

(c) First singular vector

(d) Second singular vector