Changes

This figure shows multiple representations of a MNP. The left shows 4 possible representations differentiated by color. The right shows the corresponding representation in VCF. The last representation represents the parsimonious representation of the MNP.

This figure shows multiple representations of a MNP. The left shows 4 possible representations differentiated by color. The right shows the corresponding representation in VCF. The last representation represents the parsimonious representation of the MNP.

We would like to represent a variant in as few nucleotides as possible.  Taking the example above, the MNP is represented superfluously for the first 3 representations and parsimoniously for the 4th representation.  When a variants has superfluous nucleotides on the left side, we refer that as a need to left trim and similarly for right trimming.

We would like to represent a variant in as few nucleotides as possible.  Taking the example above, the MNP is represented superfluously for the first 3 representations and parsimoniously for the 4th representation.  When a variant has superfluous nucleotides on the left side, we refer that as a need to left trim and similarly for right trimming.

== Left alignment ==

== Left alignment ==