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Assemble Multi-Layer Location Hierarchy Data for Stan

Source: R/helpers.R
assemble_layer_data.Rd

Extracts structural metadata and 1D boundary start indices from a canonicalized locations table for consumption by Stan multi-layer models.

Usage

assemble_layer_data(loc_info)

Arguments

loc_info

A canonicalized locations table (passed to canonicalize_locations()).

Value

A named list containing:

  • n_locs: integer total count of locations

  • n_layers: integer maximum depth / number of layers (>= 2)

  • layer_starts: integer array of starting location indices for each layer (length n_layers)

  • n_parent_locs: integer count of parent locations that have children

  • parent_loc_id: integer array (length n_parent_locs) of canonical IDs of parent locations

  • parent_child_starts: integer array (length n_parent_locs) of starting child location IDs

  • loc_population: numeric array (length n_locs) of population weights