Table 2.

Nine states of genoCNA

State	Copy number	Genotype
1	2	AA, AB, BB
2	2	AA, (AA, AB), (BB, AB), BB
3	0	Null
4	1	(A, AA), (A, AB), (B, AB), (B, BB)
5	3	(AAA, AA), (AAB, AB), (ABB, AB), (BBB, BB)
6	3	(AAA, AA), (AAA, AB), (BBB,AB), (BBB, BB)
7	4	(AAAA, AA), (AABB, AB), (BBBB, BB)
8	4	(AAAA, AA), (AAAA, AB), (BBBB, AB), (BBBB, BB)
9	4	(AAAA, AA), (AAAB, AB), (ABBB, AB), (BBBB, BB)

Genotype classes in parenthesis, such as (A, AB) are due to normal tissue contamination of genotype A from tumor tissue and genotype AB from normal tissue. Here we use underscore to indicate that the genotype is from normal tissue contamination.