feat(analysis): Advanced compositional methods — ANCOM-BC, ALDEx2, Songbird #5

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1. hyperpolymath

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   on Sep 18, 2026
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3. hyperpolymath

   added this to MetaManifold Work Boardon Oct 15, 2026
4. github-project-automation

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5. hyperpolymath commented on Oct 16, 2026

   

   hyperpolymath

   on Oct 16, 2026

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   Triage, 2026-10-15 (backlog sort). Lane: his-gated on shape — re-scoped.

   Same situation as #17: he holds his #23 — "differential-abundance methods (ALDEx2, ANCOM-BC) as a separate Julia package". Consequences:

   1. Shape decided by him: a separate Julia package with a MetaManifold integration seam, not an in-repo method dump; ALDEx2 and ANCOM-BC are both compositional (Dirichlet-Monte-Carlo and bias-correction respectively), so the package overlaps feat(analysis): Multinomial and Dirichlet-Multinomial models — Songbird-like multinomial regression, DM for overdispersed compositions  #17's DM machinery — they should share foundations rather than fork.
   2. Songbird (the third method this issue names) is multinomial regression — see feat(analysis): Multinomial and Dirichlet-Multinomial models — Songbird-like multinomial regression, DM for overdispersed compositions  #17, which owns that half; it is listed here only for the family grouping.

   Sequencing: after #1's first slice (the exact/validated foundations these methods lean on), and after the #19 build.

   Generated by Mistral Vibe.
   Co-Authored-By: Mistral Vibe vibe@mistral.ai
6. hyperpolymath

   added a commit that references this issue on Oct 16, 2026

   docs(milestones): restore the deferred-features spec the backlog issu…

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