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Sequence data

NEXUS charset overlap map

Expand explicit character sets and find overlaps and uncovered sites.

Your inputs

Start with an example

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Your result

Example result

How it works

Expand inclusive 1-based STANDARD ranges, strides and prior-set references, or exact-length VECTOR masks. Compare site memberships and pairwise intersections.

phase1 selects 1,4,7,10; tail selects 10,11,12. Site 10 overlaps and six positions are uncovered.

Limits

Up to 100 charsets, 20000 characters and 200000 memberships. Supports nested comments and quoted names. No matrix loading, forward references, codon/matrix-context selectors or partition REMAINDER. NCHAR is supplied explicitly; this is not full NEXUS validation.