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feat: publish LAB04 geochemical compositional data analysis - #6

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EHDataAI merged 1 commit into
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feat/lab04-geochemical-coda
Oct 7, 2026
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EHDataAI merged 1 commit into
mainfrom
feat/lab04-geochemical-coda

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@EHDataAI EHDataAI commented Oct 7, 2026

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Publishes LAB04 Geochemical Compositional Data Analysis to the public Mining Geospatial Analytics portfolio.

Highlights:

  • synthetic 10-element geochemical subcomposition
  • explicit data contract and detection-limit semantics
  • closure, CLR, ILR and Aitchison geometry
  • raw versus compositional PCA comparison
  • LOD replacement sensitivity analysis
  • executed recruiter-facing notebook
  • reusable compositional utilities
  • automated QA and 58 passing tests

The laboratory uses synthetic, redistribution-safe data only and includes explicit methodological limitations.

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EHDataAI merged commit aef99d6 into main Oct 7, 2026
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EHDataAI deleted the feat/lab04-geochemical-coda branch October 7, 2026 22:43
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