Figure 5From: A probe-treatment-reference (PTR) model for the analysis of oligonucleotide expression microarraysDistribution of the reference effect. This reference effect box plot is get from the PTR model-fitting on the perturbed data set after the invariant-set normalization. The first reference array, Exp03_R1*, has been perturbed by adding noise. It shows a quite different distribution than others.Back to article page