Figure 2

Dependance of the measured signal w.r.t. probe sequence. Probes consist of 25 nucleotides. For probes with the same number of C, G nucleotides we calculated the median signal for each array (a, b) or median of the difference w.r.t. the median signal over all arrays (c, d) (both after quantile-quantile normalization). The different colors in a) represent different arrays, and in b) represent different batches. For a description of the datasets see the Methods section.