Download a data frame containing the polygons of Australian federal electorates

Source: R/git-download.R

Downloads and returns a DataFrame containing the points that outline the polygons for each of the Australian electorates in the desired federal election. The data were obtained from the Australian Electoral Commission and the Australian Bureau of Statistics.

nat_map_download(year, ...)

Arguments

year

Desired year, must be one of 2001, 2004, 2007, 2010, 2011, 2013, 2016, 2019

...

Additional arguments passed to `download.file`

Value

A data frame consisting of points with the following variables:

  • id: Numeric identifier for the polygon

  • long: longitude coordinate of point in polygon

  • lat: latitude coordinate of point in polygon

  • order: order for polygon points

  • hole: whether polygon has a hole

  • piece: piece for polygon

  • group: group for polygon

  • elect_div: Electoral division name

  • state: Abbreviation for state name

Examples

library(eechidna)
library(dplyr)
library(ggmap)

nat_map16 <- nat_map_download(2016)

nat_map16 %>%
 filter(elect_div=='MELBOURNE') %>%
 qmplot(long, lat, data=., color='red', size=5,
        xlab=NA,ylab=NA) +
 theme(legend.position = 'none')
#> ℹ Using `zoom = 13`
#> ℹ Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under ODbL.