redist (version 4.2.0)

group_frac: Calculate Group Proportion by District

Description

redist.group.percent computes the proportion that a group makes up in each district across a matrix of maps.

Usage

group_frac(
  map,
  group_pop,
  total_pop = map[[attr(map, "pop_col")]],
  .data = pl()
)
redist.group.percent(plans, group_pop, total_pop, ncores = 1)

Value

matrix with percent for each district

Arguments

map

a redist_map object

group_pop

A numeric vector with the population of the group for every precinct.

total_pop

A numeric vector with the population for every precinct.

.data

a redist_plans object or matrix of plans

plans

A matrix with one row for each precinct and one column for each map. Required.

ncores

Number of cores to use for parallel computing. Default is 1.

Examples

data(fl25)
data(fl25_enum)

cd <- fl25_enum$plans[, fl25_enum$pop_dev <= 0.05]
fl25_map = redist_map(fl25, ndists=3, pop_tol=0.1)
fl25_plans = redist_plans(cd, fl25_map, algorithm="enumpart")

group_frac(fl25_map, BlackPop, TotPop, fl25_plans)