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. 2001 Aug 3;2(8):research0032.1–research0032.11. doi: 10.1186/gb-2001-2-8-research0032

Figure 10.

Figure 10

Similar plots as in Figure 9 for arrays hybridized to two different samples (array 24 and 36 of array set 5). (a) CEL intensities; (b) same plot as in (a) with superimposed circles representing the invariant set; (c) after renormalization; (d) Q-Q plot of normalized probe intensities. Note that the smoothing spline in (a) is affected by several points at the lower-right corner, which might belong to differentially expressed genes. The invariant set, on the other hand, does not include these points when determining the normalization curve, leading to a different normalization relationship at the high end.