Table 1 . Proportions of genome and of segments for the different ibd state types.

ibd state	All ibd	Three ibd	Two pairs	One pair	No ibd
(a1,a2,a3,a4)	(0,0,0,1)	(1,0,1,0)	(0,2,0,0)	(2,1,0,0)	(4,0,0,0)
Number	1	4	3	6	1
Percentage of genome: (each state); any δ
β = 0.01	0.0006	0.0192	0.0096	0.951	94.18
β = 0.02	0.0045	0.0739	0.0369	1.811	88.72
β = 0.05	0.0649	0.4113	0.2056	3.907	74.23
β = 0.1	0.4545	1.3636	0.6818	6.136	55.23
Segment length (units α−1 Mbp); δ = 0.1
β = 0.01	0.273	0.354	0.268	0.507	8.786
β = 0.02	0.276	0.350	0.265	0.490	4.400
β = 0.05	0.284	0.341	0.258	0.443	1.768
β = 0.1	0.299	0.326	0.246	0.382	0.889
Percentage of segments: (each state); δ = 0.1
β = 0.01	0.01	0.24	0.16	8.41	48.08
β = 0.02	0.04	0.48	0.32	8.47	46.22
β = 0.05	0.22	1.18	0.78	8.61	41.04
β = 0.1	0.82	2.26	1.50	8.67	33.59

Results are given under the population prior model, as a function of β (δ = 0.1).