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ABHom Annotation Formula

mikawinmikawin Posts: 30Member
edited October 2012 in Ask the GATK team


For the “ABHom” annotations, the VCF header gives the following formula : (A/(A+O)). What does the 'O' stand for?


Post edited by Geraldine_VdAuwera on

Best Answer

  • pdexheimerpdexheimer Posts: 543Member, Dev ✭✭✭✭
    Answer ✓

    They're the same metric, the samples that they are calculated on are stratified by the genotype call. So A and O represent reference and alternate. Or maybe alternate and other


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