At any location x, the HMM algorithm calculates 
for all
w. GENEHUNTER uses it to compute the ``expected likelihood ratio'':
where the sum is over all possible inheritance vectors at locus x.
We now show that, under Assumptions G4 of linkage equilibrium
between alleles at the DS locus at x and the marker loci,
does in fact equal the likelihood ratio generated
by m conditional on the phenotype data 
.
