## Figure 7.
Intensity dependence of the noise envelope. SD of the log
_{2}-ratios from 40 pairs of replicate HG-U95A experiments are in black. The errors represent
the variation in local SD from the 40 replicates. The intensity I = (I_{X}I_{Y}) ^{1/2} measures the coordinate along the diagonal of the scatterplots, and the red lines
represent the density of the variable I in arbitrary units (but the same in both panels). Note that the mode of the PM-MM
lies lower than that of the PM line.
Naef |