Fig. 5.
Principal component analysis (PCA). Shown are six different projections of the three principal components in a PCA, using the 5,153 variably expressed genes corresponding to the hierarchical cluster shown in manuscript Fig. 1. Normal samples are colored black, and tumor subgroups are colored green (I), blue (II), and red (III). The two tumors clustering with normal samples in Fig. 1 are colored light blue.