Hi Prof. Hae Kyung Im,

I can understand that in the genotype file (geuvadis.snps.dosage.txt) 0 represents the reference genotype, 1 represents the heterozygous genotype, and 2 represents the mutant genotype. However, in addition to the above three genotypes, my genotype file also contains missing genotypes (NN). How should the missing genotypes be encoded?