Figure 1
From: Measuring similarities between gene expression profiles through new data transformations
Plots of 2092 maize genes on to the three different feature spaces. From top to bottom, the genes are plotted on to the subspaces of dimension 2 of the new spaces. Figures 1(a-c) correspond to the space used in TransChisq, Figures 1(d-f) correspond to the space determined by the parametric covariance matrix and Figures 1(g-i) correspond to the principal component space associated with the PCAChisq. PC1, PC2 and PC3 specify the subspaces. Blue/red dots represent RC up-/down-regulated genes, cyanide/pink dots represent PM up-/down-regulated genes, green/orange dots represent QC up-/down-regulated genes. The dotted lines in (e) are the centers of the six class separating regions determined by the second and third component from the parametric covariance matrix.