Figure 7.—
Differential expressions between two HapMap populations are tested using three different methods: (A) a t-test using the original uncorrected expressions, (B) batch correction by the year of experiment, (C) surrogate variable analysis, and (D) ICE association mapping. The horizontal axis represents the P-values of differential expression for each gene using three different methods, and the vertical axis is the frequency of each interval of 4030 genes.