Sib-pair Command: ibd

ClassAnalysis and data manipulation command
Arguments <codominant marker> [ ... <codominant marker N>] [pairwise]

Write the estimated mean identity-by-descent sharing at a marker or set of closely linked markers for all relative pairs in each pedigree as a lower triangular matrix or a list of pairs.

The single locus MCMC sampler is used to estimate pairwise IBD sharing at each marker. These estimates are combined as a weighted mean, with cases where IBD is known without error given infinite weight. This assumes that there were no recombination events between the markers in the set to be combined.


>> include
>> ibd D13S162 
>> ibd D13S162 pairwise
>> ibd D13S162 D13S160

<< (kinship)Up to index>> (ibs)