redist.plot.adj

Enables researchers to sample redistricting plans from a pre-specified
target distribution using Sequential Monte Carlo and Markov Chain Monte Carlo
algorithms. The package allows for the implementation of various constraints in
the redistricting process such as geographic compactness and population parity
requirements. Tools for analysis such as computation of various summary statistics
and plotting functionality are also included. The package implements the SMC
algorithm of McCartan and Imai (2023) <doi:10.1214/23-AOAS1763>, the enumeration
algorithm of Fifield, Imai, Kawahara, and Kenny (2020) <doi:10.1080/2330443X.2020.1791773>,
the Flip MCMC algorithm of Fifield, Higgins, Imai and Tarr (2020) <doi:10.1080/10618600.2020.1739532>,
the Merge-split/Recombination algorithms of Carter et al. (2019) <arXiv:1911.01503>
and DeFord et al. (2021) <doi:10.1162/99608f92.eb30390f>, and the Short-burst
optimization algorithm of Cannon et al. (2020) <arXiv:2011.02288>.

Christopher T. Kenny

redist

Simulation Methods for Legislative Redistricting

Cory McCartan

Ben Fifield

Kosuke Imai

Jun Kawahara

Alexander Tarr

Michael Higgins

redist.plot.adj function

<dl><dt>shp</dt>
<dd>A SpatialPolygonsDataFrame or sf object. Required.</dd>
<dt>adj</dt>
<dd>A zero-indexed adjacency list. Created with redist.adjacency
if not supplied. Default is NULL.</dd>
<dt>plan</dt>
<dd>A numeric vector with one entry for each precinct in shp.
Used to remove edges that cross boundaries. Default is <code>NULL</code>. Optional.</dd>
<dt>centroids</dt>
<dd>A logical indicating if centroids should be plotted. Default is <code>TRUE</code>.</dd>
<dt>drop</dt>
<dd>A logical indicating if edges that cross districts should be dropped. Default is <code>FALSE</code>.</dd>
<dt>plot_shp</dt>
<dd>A logical indicating if the shp should be plotted under the
graph. Default is <code>TRUE</code>.</dd>
<dt>zoom_to</dt>
<dd><code><a href="https://dplyr.tidyverse.org/reference/dplyr_data_masking.html">&lt;data-masking&gt;</a></code> An
indexing vector of units to zoom the map to.</dd>
<dt>title</dt>
<dd>A string title of plot. Defaults to empty string. Optional.</dd></dl>

Arguments

Creates a Graph Overlay — redist.plot.adj

<dl>

<dt>shp</dt>
<dd>A SpatialPolygonsDataFrame or sf object. Required.</dd>


<dt>adj</dt>
<dd>A zero-indexed adjacency list. Created with redist.adjacency
if not supplied. Default is NULL.</dd>


<dt>plan</dt>
<dd>A numeric vector with one entry for each precinct in shp.
Used to remove edges that cross boundaries. Default is <code>NULL</code>. Optional.</dd>


<dt>centroids</dt>
<dd>A logical indicating if centroids should be plotted. Default is <code>TRUE</code>.</dd>


<dt>drop</dt>
<dd>A logical indicating if edges that cross districts should be dropped. Default is <code>FALSE</code>.</dd>


<dt>plot_shp</dt>
<dd>A logical indicating if the shp should be plotted under the
graph. Default is <code>TRUE</code>.</dd>


<dt>zoom_to</dt>
<dd><code><a href='https://dplyr.tidyverse.org/reference/dplyr_data_masking.html'>&lt;data-masking&gt;</a></code> An
indexing vector of units to zoom the map to.</dd>


<dt>title</dt>
<dd>A string title of plot. Defaults to empty string. Optional.</dd>

</dl>

Creates a Graph Overlay

redist.plot.adj: Creates a Graph Overlay

Description

Usage

Value

Arguments

Examples