Figure 8

Quality plots ( Q _k versus V _k ) using replicated arrays. Black dots – three replicated images (insets) are combined without normalization and the default quality weights are used; red dots – three replicated images (insets) are combined after the global normalization; blue dots – triplicate spots from the first array are used. The solid lines represent the exponential ideal quality curves f(V _k ) (Eq. (6),a): Red line (for the red dots) – $\overline{V}$ ≈ 0.125; Blue line (for the blue dots) – $\overline{V}$ ≈ 0.08.