downloadPopByChr        download hapmap resource with LD estimates
expandSnpSet            Given a set of SNP identifiers, use LD to
                        expand the set to include linked loci
hmld                    import hapmap LD data and create a structure
                        for its management
ldblock-package         data structures for linkage disequilibrium
                        measures in populations
ldstruct-class          Class '"ldstruct"'
