Figure 3.
Identification of genes with significant changes in expression. (A) Scatter plot of the observed relative difference d(i) versus the expected relative difference dE(i). The solid line indicates the line for d(i) = dE(i), where the observed relative difference is identical to the expected relative difference. The dotted lines are drawn at a distance Δ = 1.2 from the solid line. (B) Scatter plot of d(i) vs. s(i). (C) Cube root scatter plot of average gene expression in induced and uninduced cells. The cutoffs for 2-fold induction and repression are indicated by the dashed lines. In A–C, the 46 potentially significant genes for Δ = 1.2 are indicated by the squares.