Microarray Normalization Revisited for Reproducible Breast Cancer Biomarkers

Figure 9

“GCRMA R global” versus “RMA R single” shown in Bland-Altman plot (comparison “N”). The bimodal distribution of values corresponds to receptors being “not expressed” (low values) versus “expressed” (large values). Note that small values are to a large extent buried in noise. For details regarding panels and axes, see caption of Figure S1.