Table 1. List of models that may be specified using SpaceMix, along with the number and identity of free parameters in each.

Model	# of Free Parameters	Parameters
(1) stationary population locations, no admixture	K + 3	α0, α1, α2, η
(2) inferred population locations, no admixture	2K + 3	α0, α1, α2, η, G
(3) stationary population locations, inferred admixture	2K + 3	α0, α1, α2, η, G*, w
(4) inferred population locations, inferred admixture	3K + 3	α0, α1, α2, η, G, G*, w