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Build wide-format crosswalk for a single primary geography

Source: R/build_wide.R
build_wide_for_primary.Rd

For each feature of the primary geography, finds overlapping features from all target geographies and returns a tibble with one row per primary feature and one column per target geography (values are semicolon-separated names of overlapping features).

Usage

build_wide_for_primary(
  all_gdf,
  primary_id,
  other_ids,
  buffer_feet = -50,
  min_area = 100,
  epsilon = 1e-06,
  max_primaries = NULL
)

Arguments

all_gdf

An sf object containing all boundaries, projected to EPSG:2263 (NY State Plane, feet).

primary_id

The geography ID to use as the primary (e.g., "cd").

other_ids

Character vector of target geography IDs.

buffer_feet

Negative buffer (in feet) applied during intersection to suppress edge artifacts. Default -50.

min_area

Minimum intersection area in square feet. Default 100.

epsilon

Tiny area threshold to suppress numerical noise. Default 1e-6.

max_primaries

Optional integer to limit the number of primary features processed (useful for testing).

Value

A tibble with one row per primary feature. The first column is named after primary_id and contains the primary feature names. Remaining columns are named after each target geography ID and contain semicolon-separated overlapping feature names.