Fig. 7
From: Novel significant stage-specific differentially expressed genes in hepatocellular carcinoma
Principal components analysis of cancer vs control. a The first two principal components of the top 100 genes from linear modeling are plotted. It could be seen that control samples (red) clustered independent of the cancer samples (colored by stage). b The same analysis repeated with 100 random genes failed to effect a clustering of the control samples relative to the cancer samples