Fig. 1.

Diagram of the model. An allele at a single locus evolves in a population of piecewise constant size with $L=5$ epochs spanning the time periods $[{\tau }_0,{\tau }_1],\dots ,[{\tau }_{L-1},{\tau }_L]$, where ${\tau }_0\equiv 0$. Samples of sizes $n_1,\dots ,n_k$ haplotypes are taken at times $t_1,\dots ,t_K$.