Creates a Graph Overlay

redist.plot.adj(
  shp,
  adj = NULL,
  plan = NULL,
  centroids = TRUE,
  drop = FALSE,
  plot_shp = TRUE,
  zoom_to = NULL,
  title = ""
)

Arguments

shp: A SpatialPolygonsDataFrame or sf object. Required.
adj: A zero-indexed adjacency list. Created with redist.adjacency if not supplied. Default is NULL.
plan: A numeric vector with one entry for each precinct in shp. Used to remove edges that cross boundaries. Default is NULL. Optional.
centroids: A logical indicating if centroids should be plotted. Default is TRUE.
drop: A logical indicating if edges that cross districts should be dropped. Default is FALSE.
plot_shp: A logical indicating if the shp should be plotted under the graph. Default is TRUE.
zoom_to: <data-masking> An indexing vector of units to zoom the map to.
title: A string title of plot. Defaults to empty string. Optional.

ggplot map

data(iowa)
redist.plot.adj(shp = iowa, plan = iowa$cd_2010)