Figure 3From: A database and API for variation, dense genotyping and resequencing dataLinkage Disequilibrium Plot. The pattern of linkage disequilibrium (LD) in the HapMap CEU population for a 20 kb region of the BRCA2 gene. The displayed values for r2 and D' are calculated on the fly by the variation API, which calls a dedicated C function after the necessary data is extracted from the database.Back to article page