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Plot Cohort Dependency Graph

Source: R/manifest_helpers.R
plotCohortGraph.Rd

Generates a mermaid graph TD diagram showing how cohorts in a CohortManifest depend on each other. Dependency data is read directly from the SQLite manifest database — no sidecar JSON files required.

Prints the mermaid string to the console (renders automatically in RStudio, Quarto, and GitHub markdown) and returns it invisibly.

Usage

plotCohortGraph(manifest)

Arguments

manifest

A CohortManifest R6 object.

Value

Character. The mermaid diagram string (invisibly).

Details

Node shapes by cohort type:

  • Rectangle [label] — circe (base) cohort

  • Circle (label) — subset cohort

  • Diamond {{label}} — union cohort

  • Hexagon {{{{label}}}} — complement / composite cohort

Arrows show dependency direction: parent → dependent cohort.

For a tabular view of derived cohorts and their rule parameters, see CohortManifest$reviewDependentCohorts().