redist.plot.map: Plot a Map

In redist: Simulation Methods for Legislative Redistricting

Plot a Map

Description

Create a ggplot map. It fills by plan or argument fill. If both are supplied, plan is used as the color and fill as the alpha parameter.

Usage

redist.plot.map(
  shp,
  adj,
  plan = NULL,
  fill = NULL,
  fill_label = "",
  zoom_to = NULL,
  boundaries = is.null(fill),
  title = ""
)

Arguments

shp	A SpatialPolygonsDataFrame, sf object, or redist_map. Required.
adj	A zero-indexed adjacency list. Created with redist.adjacency if not supplied and needed for coloring. Default is NULL.
plan	<data-masking> A numeric vector with one entry for each precinct in shp. Used to color the districts. Default is NULL. Optional.
fill	<data-masking> A numeric/integer vector with values to color the plot with. Optional.
fill_label	A string title of plot. Defaults to the empty string
zoom_to	<data-masking> An indexing vector of units to zoom the map to.
boundaries	A logical indicating if precinct boundaries should be plotted.
title	A string title of plot. Defaults to empty string. Optional.

Value

ggplot map

Examples

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

iowa_map <- redist_map(iowa, existing_plan = cd_2010)
redist.plot.map(iowa_map, fill = dem_08/tot_08, zoom_to = (cd_2010 == 1))

redist documentation built on April 3, 2023, 5:46 p.m.