Figure 4.

Blood data: 95% UCL vs. the average overall rank of the normalizing factors (expression levels). Each point represents one of the possible 33 = 25-1 gene subsets. Different colors are used for the subsets with different numbers of genes included. The x-coordinate is the average overall rank of the corresponding normalizing factor variance. The y-coordinate is the upper 95% confidence limit (95% UCL) for the standard deviation of the log normalizing factor.

Chervoneva et al. BMC Bioinformatics 2010 11:253   doi:10.1186/1471-2105-11-253
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