Function reference • geomander

Estimating Across Geographic Levels Functions for approximating values at different levels of geography
`estimate_down()`	Estimate Down Levels
`estimate_up()`	Estimate Up Levels
`geo_estimate_down()`	Estimate Down Geography Levels
`geo_estimate_up()`	Estimate Up Geography Levels
`geo_match()`	Match Across Geographic Layers
Buiding Datasets Functions to help build and refine data
`block2prec()`	Aggregate Block Table by Matches
`block2prec_by_county()`	Aggregate Block Table by Matches and County
`create_block_table()`	Create Block Level Data
`create_tract_table()`	Create Tract Level Data
`geo_filter()`	Filter to Intersecting Pieces
`geo_trim()`	Trim Away Small Pieces
Downloading Datasets Functions to help download common datasets
`alarm_states()`	List Available States from ALARM Data
`clean_vest()`	Clean VEST Names
`get_alarm()`	Get ALARM Dataset
`get_dra()`	Get Dave's Redistricting App Dataset
`get_heda()`	Get Harvard Election Data Archive ("HEDA") Dataset
`get_vest()`	Get Voting and Election Science Team ("VEST") Dataset
`heda_states()`	List Available States from HEDA Dataverse
`vest_states()`	List Available States from VEST Dataverse
Fixing Geographic Imperfections Functions to help pretend that the geographies were properly connected
`add_edge()`	Add Edges to an Adjacency List
`adjacency()`	Build Adjacency List
`check_contiguity()` `cct()` `ccm()`	Check Contiguity by Group
`check_polygon_contiguity()`	Check Polygon Contiguity
`compare_adjacencies()`	Compare Adjacency Lists
`geo_sort()`	Sort Precincts
`split_precinct()`	Split a Precinct
`subtract_edge()`	Subtract Edges from an Adjacency List
`suggest_component_connection()`	Suggest Connections for Disconnected Groups
`suggest_neighbors()`	Suggest Neighbors for Lonely Precincts
Format Data with Dave’s Redistricting Functions to get maps into DRA or from DRA
`dra2r()`	DRA to R
`r2dra()`	R to DRA
Center of Shape Adjusted centroids to ensure that the point is in the shape
`geos_centerish()`	Get the kind of center of each shape
`geos_circle_center()`	Get the centroid of the maximum inscribed circle
`st_centerish()`	Get the kind of center of each shape
`st_circle_center()`	Get the centroid of the maximum inscribed circle
Tools for working with borders Functions that deal with two sides of a seam between two administrative units
`seam_adj()`	Filter Adjacency to Edges Along Border
`seam_geom()`	Filter Shape to Geographies Along Border
`seam_rip()`	Remove Edges along a Boundary
`seam_sew()`	Suggest Edges to Connect Two Sides of a Border
Spatial Autocorrelation Functions to measure local and global autocorrelation measures
`global_gearys()`	Compute Global Geary's C
`global_morans()`	Compute Global Moran's I
`gstar_i()`	Compute Standardized Getis Ord G*i
`local_gearys()`	Compute Local Geary's C
`local_morans()`	Compute Local Moran's I
Included Example Data
`checkerboard`	Checkerboard
`checkerboard_adj`	Checkerboard Adjacency
`nrcsd`	nrcsd
`orange`	orange
`precincts`	precincts
`rockland`	rockland
`towns`	towns
`va18sub`	va18sub
`va_blocks`	va_blocks
`va_blocks`	va_vtd
Plotting Functions
`geo_plot()`	Plots a Shape with Row Numbers as Text
`geo_plot_group()`	Create Plots of Shapes by Group with Connected Components Colored
Leftovers Functions that don’t really fit elsewhere
`geomander-package` `geomander`	Geographic Tools for Studying Gerrymandering
`baf_to_vtd()`	Estimate Plans from a Block Assignment File to Voting Districts
`count_connections()`	Count Times Precincts are Connected
`get_lewis()`	Get historical United States Congressional District Shapefiles
`get_rpvnearme()`	Get Racially Polarized Voting Dataset from RPV Near Me
`regionalize()`	Estimate Regions by Geographic Features

Reference

Estimating Across Geographic Levels

Buiding Datasets

Downloading Datasets

Fixing Geographic Imperfections

Format Data with Dave’s Redistricting

Center of Shape

Tools for working with borders

Spatial Autocorrelation

Included Example Data

Plotting Functions

Leftovers