get.similarity          Interogate similarity function for Geary-Moran
                        TDT tests
hap.transmit            Build parental haplotypes in nuclear families
set.similarity          Set similarity function for Geary-Moran type
                        TDT tests
tdt.quad                TDT tests for extended haplotypes
tdt.rr                  Calculate haplotype relative risks in TDT
                        studies
tdt.select              Select informative transmissions of
                        sub-haplotypes for the TDT test
