choropleth {GISTools} | R Documentation |
choropleth
Description
Draws a choropleth map given a spatialPolygons object, a variable and a shading scheme.
Usage
choropleth(sp, v, shading, ...)
Arguments
sp |
A |
v |
The variable name to be mapped and must included in the data. |
shading |
A shading scheme created by |
... |
Additional parameters to be passed on to the |
Details
The function returns no value, but draws a choropleth map on the current graphics device as a side effect.
Value
None (see above).
Author(s)
Chris Brunsdon, Binbin Lu
See Also
choro.legend
, auto.shading
, shading
.
Examples
# Read in map data and compute a rate for mapping
# Try the sf class
data(WHData)
shades = auto.shading(WHHP[["Avg_HP_avg"]],n=7)
dev.new(width = 16, height = 12)
choropleth(sp = WHHP,v="Avg_HP_avg",shading=shades)
choro.legend(548871.4, 3377000, shades,title='Average house price')
#Try the Spatial object
shades = auto.shading(whp_sp@data[["Avg_HP_avg"]],n=6)
dev.new(width = 16, height = 12)
choropleth(sp = whp_sp,v="Avg_HP_avg",shading=shades)
choro.legend(548871.4, 3377000, shades,title='Average house price')
[Package GISTools version 1.0-1 Index]