comp_fh: Calculate Fryer Holden Compactness

In redistmetrics: Redistricting Metrics

Calculate Fryer Holden Compactness

Description

Calculate Fryer Holden Compactness

Usage

comp_fh(plans, shp, total_pop, epsg = 3857, ncores = 1)

Arguments

plans	A redist_plans object or plans_matrix where each row indicates a district assignment and each column is a plan.
shp	A redist_map object, tibble, or data frame with an sf geometry column.
total_pop	A numeric vector with the population for every observation.
epsg	Numeric EPSG code to use to project the shapefile, if needed. Default is 3857.
ncores	TRUE

Value

A numeric vector. Can be shaped into a district-by-plan matrix.

References

Fryer R, Holden R. 2011. Measuring the Compactness of Political Districting Plans. Journal of Law and Economics.

Examples

data(nh)
data(nh_m)
# For a single plan:
comp_fh(plans = nh$r_2020, shp = nh, total_pop = pop)

# Or many plans:
comp_fh(plans = nh_m[, 3:5], shp = nh, pop)

redistmetrics documentation built on May 29, 2024, 8:02 a.m.