Co-expressed gene networks in COXPRESdb are drawn based on rank of correlation. Use of correlation rank partially normalizes the density of genes in correlation space.

Correlation rank is asymmetric, namely the rank of gene B from gene A is not the same as the rank of gene A from gene B. Thus, the geometric averaged rank is used.
AveRank(AB) = √ (Rank(A→B) x Rank(B→A))

Edge color indecates support data between the genes.

Example