Table 1. Illustration of the three different encoding schemes for SNP data.

SNPi	Add count	Rec		Gen
		A	B	AA	AB	BB
AA	0	1	0	1	0	0
AB	1	1	1	0	1	0
BB	2	0	1	0	0	1

We investigated three different encoding schemes for SNP data, here with two alleles A (major) and B (minor). The additive encoding (Add) represents each genotype through the minor allele count. The recessive/dominant (Rec) encoding encodes the presence of at least one allele for each of the two. The genotypic (Gen) encoding consists of three features, one for each possible genotype.