Merge ibd probabilities data frame and an individual's sex on pedigree id and person id
mergeIBD(ibd.dat, sex.dat)
a data frame with identifiers for relative pairs, their ibd data, and the two sex codes for the pair
A data frame with ped.id, person1.id, person2.id, and the estimated ibd sharing values at each chromosome position for the two people.
a data frame containing ped.id, person.id, and sex