Technical documentation

Global Health Policy Simulation model

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API

Implementation notes, project reports, and modeller guides (FINCH, India, shared codebase).

Reach out if you need a code path, config walkthrough, or help debugging.

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Guides and reports

Document	Description
FINCH linear models and income-stratum adjustment	Policy equations, predictor names (log_income, gender2), income-quintile factors-mean, Q&A
HealthGPS update report (20 Feb 2026)	Integrated changes, module order, config/schema, verification
Simulation models reference	Per-module and per-ModelName inputs, outputs, schemas, code pointers
Performance optimizations	Parallelisation and runtime notes

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Software plans

Engineering design notes for developers. Written as ordinary markdown plans (summary, goals, work items). Some items may already be in the tree.

Document	Topic
Income quintile factor means	Income-stratum factors-mean (schema + C++)
Dynamic income categories	3/4/5 income category layout
Weight quintile plan	Kevin Hall weight by income stratum
Height CSV quintile plan	Height curves by quintile
Individual ID tracking CSV	Per-person output tracking
Same person ID baseline/intervention	Stable IDs across scenarios
Parallelize output writes	Result dispatch threading
Project requirements plan	project_requirements schema
Schema migration plan	Config v1 to v2

If you are working on

Topic	Start here	Then
FINCH policy CSVs / gender2	FINCH guide	Project requirements plan
Income quintile adjustment	FINCH guide	Income quintile plan
Kevin Hall height/weight	Height quintile plan	Weight quintile plan
Output / person IDs	Individual ID tracking	Same person ID plan
What shipped in Feb 2026	Update report	Performance notes
Windows build / MSVC	MSVC troubleshooting	Developer Guide

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Area	Link
Documentation root	documentation/README.md
User docs	user/
Developer docs (build, MSVC)	developer/

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Author: Mahima Ghosh