Figure 2From: Identical probes on different high-density oligonucleotide microarrays can produce different measurements of gene expressionFrequency of differential expression values observed as a function of p-value. Plotted is the number of probesets at or below the indicated p-value for differential measurement when two pools of 5 arrays are compared. The p-values were calculated based on a standard t-test using one sampling of all the possible 5 by 5 comparisons.Back to article page