Increased comparability between RNA-Seq and microarray data by utilization of gene sets
Fig 2
Demonstration of the enrichment score calculation with a simulated dataset.
Top: sorted expression levels of 250 genes in which coloring represents gene set membership. Middle: Left, the calculated PH values for each gene set. Right, the PNH values for each gene set. Bottom: The resulting enrichment scores for each of the three gene sets.