get_electorate_shapes: Extract shapefiles (of Australian electorates) from raw file into fortified
map and data components.
Description
Extract polygon information and demographics for each of Australia's electorates.
The map and data corresponding to the shapefiles of the 2013 Australian electorates (available at http://www.aec.gov.au/Electorates/gis/gis_datadownload.htm) are part of this package as nat_map.rda and nat_data.rda in the data folder.
The function will take several minutes to complete.
path to object in local machine (only if shapefile has not already loaded)
sF
Shapefile object loaded to environment using load_shapefile
mapinfo
Is the data mapInfo format, rather than ESRI? default=TRUE
layer
If the format is mapInfo, the layer name also needs to be provided, default is NULL
tolerance
Numerical tolerance value to be used by the Douglas-Peuker algorithm (only if shapefile has not already loaded)
Value
list with two data frames: map and data; `map` is a data set with geographic latitude and longitude, and a grouping variable to define each entity.
The `data` data set consists of demographic or geographic information for each electorate, such as size in square kilometers or corresponding state.
Additionally, geographic latitude and longitude of the electorate's centroid are added.
# NOT RUN {# Get electorate shapes in data.frame format# Path to your shapefilefl <- "local/path/to/shapefile.shp"
map_and_data16 <- get_electorate_shapes(path_to_shapefile = fl)
# }