Jowei Chen
Jowei Chen
Assistant Professor,
Department of Political Science,
University of Michigan, 2009-


Contact:
Jowei Chen
Department of Political Science
University of Michigan
5700 Haven Hall
505 South State Street
Ann Arbor, MI 48109-1045

Telephone: (917) 861-7712
Email: jowei@umich.edu

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Replication Code and Data for: Unintentional Gerrymandering

Replication Code, Data Files, and Simulated Districting Plan Maps For:


1. Replication Code (Required Software: R, Stata , ArcMap 10.1 , and ArcScene 10.1 ):

Note: Each .R source file will automatically download the necessary data files into the local machine's R working directory. Each Stata .do file will also automatically retrieve the necessary data files from this webpage.
Note: Installation of the following R packages is required for producing maps from the .R replication code: maptools, plotrix, gpclib.



















2. Data Files:











3. Maps of all Simulated Florida Redistricting Plans:

Non-Compact Districting Plans:
(Files are separated by the total number of districts in each districting plan, ranging from 2 to 200 districts)
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200

Compact Districting Plans:
(Files are separated by the total number of districts in each districting plan, ranging from 2 to 200 districts)
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200

4. Note on Figure 3:

Figure 3 (Plot Image; .EPS file format) was not produced in R or Stata, so there is no replication code. There are currently no available packages in R or Stata for calculating the Local Indicators of Spatial Association (LISA) statistics depicted in this map. Instead, the Figure 3 map was produced using various point-and-click capablities available in ArcGIS 10.1 software (ArcScene and ArcMap). Hence, we are instead simply providing the underlying GIS shapefile used to produce this map. This document describes how to reproduce this map from this shapefile, using ArcGIS software. Please note that the installation of both ArcScene 10.1 and ArcMap 10.1 is necessary in order to produce the Figure 3 map.


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