Figure 3From: Exploratory differential gene expression analysis in microarray experiments with no or limited replicationOverlay of concentration ellipses for the bivariate standard normal on simulated data. Scatter plots of nine simulated datasets (generated as random samples from a bivariate normal population) with overlaid concentration ellipses for the standard bivariate normal distribution (see Figure 1 for the portions captured). Channel intensity values were log(base 2)-transformed, normalized and standardized.Back to article page