Figure 6From: Empirical characterization of the expression ratio noise structure in high-density oligonucleotide arraysQQ plots of LRσ (η) versus normal distributions in replicate HG-U95A experiments. The examples shown are the two best and two worst of 40 replicates. The region between the gray lines contains 99.9% of the data. Red dots represent ratios with Ngood < 5.Back to article page