Table 2

Contingency table for experiment A and experiment B, given a threshold q


Experiment B





DE
 Non DE
Experiment A
 DE
 O11(q)
 O1+(q) - O11(q)
 O1+(q)

Non DE
 O+1(q) - O11(q)
 n - O1+(q) - O+1(q) + O11(q)
 n - O1+(q)


O+1(q)
 n - O+1(q)
 n

n is the total number of genes and O11(q) is the number of genes in common. DE, differentially expressed. Non DE, non differentially expressed

Blangiardo and Richardson Genome Biology 2007 8:R54   doi:10.1186/gb-2007-8-4-r54