Figure 3From: Unlocking the potential of publicly available microarray data using inSilicoDb and inSilicoMerging R/Bioconductor packagesRLE plots. Visual inspection of two merged data sets using relative log expression plots. In these relative log expression plots samples are colored by study. For clarity purposes only 40 randomly selected samples are shown. On the left the two data sets are merged without any transformation and on the right the two data sets are merged by using the COMBAT method. After applying COMBAT the mean of the RLE is approximately 0 for all genes which indicates a good batch effect removal.Back to article page