Figure 4From: A benchmark for statistical microarray data analysis that preserves actual biological and technical varianceVolcano plots. Volcano plots show the -log10 (p-values) versus the log2(fold change). In black, the DEGs, in grey, the non DEGs. The horizontal line represents the 10-2 threshold on the p values, while the vertical lines show thresholds of ± 2 fold changes. From a) to d) (runs 1 to 4), the difficulty of finding DEGs increases.Back to article page