Figure 2
From: Unsupervised assessment of microarray data quality using a Gaussian mixture model
Comparison of Parameter Estimates for 3' Expression Arrays and Exon Arrays. Each diagram illustrates the unsupervised Gaussian parameter estimates for one of the quality control features, for each of the two chip types. Estimates shown are for the following features: (A) Upper tail of the Relative Log Intensity (RLE), computed using the affyPLM functionality, (B) median of the raw intensity distribution, (C) 10th percentile of the probe-level model residuals, and (D) inter-quartile range of the RLE.