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== Left alignment ==
== Left alignment ==
Left aligning a variant generally mean shifting the start position of that variant to the left till it is no longer possible to do so. It is a concept associated with insertion and deletion variants. In order to further differentiate left alignment from simply left padding a variant, the definition is as follows:
Left aligning a variant means shifting the start position of that variant to the left till it is no longer possible to do so. It is a concept associated with insertion and deletion variants. In order to further differentiate left alignment from simply left padding a variant, the definition is as follows:
A variant is left aligned if it is no longer possible to shift its position to the left while keeping the length of all alleles constant.
A variant is left aligned if it is no longer possible to shift its position to the left while keeping the length of all alleles constant.
