Figure 2
From: Cross platform microarray analysis for robust identification of differentially expressed genes
Intraplatform reproducibility. The descriptive CAT (Correspondence At the Top) plots [9] were used to evaluate the array-to-array precision within each microarray platform for the three replicates. CAT Plots describe the proportion of genes in common between replicates as function of list size. To generate CAT Plots on treated samples we used the lists of genes ranked by |log2(fold change)| created by each of the treated samples (TRT) versus a reference, which is one of the control samples (CTRL), both for AFFX (A.1) and ABI (A.2). Similarly we calculated CAT Plots for CTRL samples using one of the TRTs as reference for AFFX (B.1) and ABI (B.2).