BristolBathGraph: Postcode Sectors in South-West England as an igraph Object
In timothywong731/GeosptNet: Geospatial Network Analysis

Description Usage Format Source Examples

An undirected graph ('igraph' object) containing Postcode Sectors of the Bristol (BS) and Bath (BA) area in South-West England of the United Kingdom. Vertexes represent postcode sectors while edges indicate transportation linkage between adjacent postcode sectors.

1	BristolBathGraph

A 'igraph' object with 245 vertexes and 650 edges.

Vertex attributes:

name: UK postcode sector (e.g. 'BS1 1', 'BS6 5')
population: Usual resident population, provided by UK Census 2011
long: Longitude of the postcode sector
lat: Latitude of the postcode sector

Edge attributes:

distance: Road distance between the incident vertexes, in metres
duration: Travel time between the incident vertexes, in seconds

Usual resident population, UK Census 2011 (Table ID: KS101EW) https://www.nomisweb.co.uk/census/2011/ks101ew

# Create a subgraph using the top 15 vertexes and plot it.
library(igraph)
library(sp)
set.seed(1000)
plot(induced_subgraph(BristolBathGraph, 1:15))

# Create a histogram showing the distribution of travel time
hist(edge_attr(BristolBathGraph, "duration"))

# Scatterplot showing distance and duration between postcode sectors 
plot(edge_attr(BristolBathGraph, "distance"),
     edge_attr(BristolBathGraph, "duration"),
     xlab = "Distance (m)",
     ylab = "Duration (seconds)")