R/EF3.R

In netseg: Measures of Network Segregation and Homophily

#' Example data from Figure III of Echenique and Fryer (2006)
#'
#' Artificial example data from Echenique & Fryer (2006) Figure III representing
#' a city with black and white neighbourhoods.
#'
#' This data is taken from Echenique & Fryer (2006, figure III). The data
#' represent a fictional city composed of 30 neighborhoods that are either
#' black or white.
#'
#' @format Object of class "igraph". An undirected network with vertex
#' attributes:
#'
#' - `name` -- vertex names of the form "A1" in which letter and number indicate
#' the position in the lattice
#' - `race` -- values 1 or 2 indicate the two groups
#'
#' @source Echenique, Federico and Roland G. Fryer, Jr. (2006) "A Measure of
#'   Segregation Based On Social Interactions" *Quarterly Journal of Economics*
#'   CXXII(2):441-485
#'
#' @keywords datasets
#' @examples
#' if(requireNamespace("igraph", quietly = TRUE)) {
#'   set.seed(1)
#'   plot(
#'     EF3,
#'     layout = igraph::layout.fruchterman.reingold,
#'     vertex.color = igraph::V(EF3)$type+1,
#'     vertex.label.family = "",
#'     sub = "Source: Echenique & Fryer (2006)",
#'     main = "Neighborhood racial segregation\n in a fictional city"
#'   )
#' }
"EF3"