EPSG

This data contains NAD83 (HARN) EPSG codes for every U.S. state.
Since <code>redist</code> uses projected geometries, it is often a good idea to use
projections tailored to a particular state, rather than, for example, a
Mercator projection. Use these codes along with <code><a href="https://r-spatial.github.io/sf/reference/st_transform.html">sf::st_transform()</a></code> to
project your shapefiles nicely.

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

EPSG function

named list containing EPSG codes for each U.S. state. Codes are
indexed by state abbreviations.

Format

This data contains NAD83 (HARN) EPSG codes for every U.S. state.
Since <code>redist</code> uses projected geometries, it is often a good idea to use
projections tailored to a particular state, rather than, for example, a
Mercator projection. Use these codes along with <code><a href='https://r-spatial.github.io/sf/reference/st_transform.html'>sf::st_transform()</a></code> to
project your shapefiles nicely.

EPSG: EPSG Table

Description

Usage

Arguments

Format

Examples