Calculate Dilution Asymmetry
part_dil_asym(plans, shp, dvote, rvote)A redist_plans object or plans_matrix where each row indicates a district assignment and each column is a plan.
A redist_map object, tibble, or data frame containing other columns.
Unqouted name of column in shp with total population.
Unqouted name of column in shp with group population.
A numeric vector. Can be shaped into a district-by-plan matrix.
Sanford C. Gordon and Sidak Yntiso. 2024. Base Rate Neglect and the Diagnosis of Partisan Gerrymanders. Election Law Journal: Rules, Politics, and Policy. doi:10.1089/elj.2023.0005 .
data(nh)
data(nh_m)
# For a single plan:
part_dil_asym(plans = nh$r_2020, shp = nh, rvote = nrv, dvote = ndv)
#> [1] -0.01610717 -0.01610717
# Or many plans:
part_dil_asym(plans = nh_m[, 3:5], shp = nh, rvote = nrv, dvote = ndv)
#> [1] -0.06221377 -0.06221377 0.01235563 0.01235563 -0.05274854 -0.05274854