cohortflow - Define and Apply Cohort Inclusion/Exclusion Criteria

Define inclusion and exclusion criteria for cohort studies using formulas or functions, apply them to data, and render the resulting attrition flow as CONSORT flow diagrams, tables, or narrative text. Supports hierarchical designs (participants nested in clusters/sites) and flexible grouping for reporting. Criteria pipelines can be serialised to YAML for reproducibility and sharing. Parts of this package were developed with the assistance of GitHub Copilot (powered by Claude), an AI coding assistant.