Variant classification
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Introduction
The Variant Call Format (VCF) is a flexible file format specification that allows us to represent many different variant types ranging from SNPs, indels to copy number variations. However, variant representation in VCF is non-unique for variants that have explicitly expressed reference and alternate sequences.
On this wiki page, we describe a a variant classification system for VCF variants.
Definitions
The normalization of a variant representation in VCF consists of two parts: parsimony and left alignment pertaining to the nature of a variant's length and position respectively.
Maintained by
This page is maintained by Adrian.
