Figure 6

SVD of the gene expression data. (A) Heat map of 18 eigengenes of the entire data set. (B) Expression of the five most significant eigengenes in the 18 eigenarrays. Each bar corresponds to the expression level of the eigengene in each array (control: 1 to 4; USA 2: 5 and 6; USA 6: 7 and 8, USA 7: 9 and 10; China 8: 11 to 14; Europe 11: 15 and 16; India 13: 17 and 18 ) (C) Weights (eigenvalues) of the eigengenes and their relative contribution to the entropy of the data (d = 0.65) after filtering out eigengene 1, which did not differentiate between the arrays and can be considered to contribute only “noise” in the context of this study [56].