Figure 4.
Comparison of the top selected genes by different methods for the head and neck cancer dataset. Venn diagram of top 50 genes estimated by (a) t-test, SAM, and LIMMA, and proposed or by (b) WAD, RP, FCROS, and proposed method. (c) Plot of ordered smallest β-weight for each gene and (d) histogram of β-weights. Where the smallest β-weight represents the minimum value of 22 β-weights for 22 paired samples for each gene. The outlier genes are indicated in red color. The gray line indicates the maximum value of cutoff, δ = 0.2 for outlying genes.