map.ca.base: Create the base of a soc.ca map
Description
Create the base of a soc.ca map
Usage
map.ca.base(up = NULL, down = NULL, right = NULL, left = NULL, ...)
Arguments
up
the name of + pole on the vertical axis - "North"
down
the name of the - pole on the vertical axis - "South"
right
the name of the + pole on horizontal axis - "East"
left
the name of the - pole on the horizontal axis - "West"
...
further arguments are passed onto ggplot()