An example of parental genotype counts showing transmitted and nontransmitted haplotypes in a training and test data sets of nuclear families and haplotypes of length ( different haplotypes: AB, AB, aB and ab).

The total number of trios is ( parents) so that half of them ( trios, parents) were randomly assigned to the training data set and the others to the test data set. Each row shows counts for a possible configuration (there are possible configurations for haplotypes of length ) of the transmitted (second column) and nontransmitted (third column) haplotypes in a parental genotype.