get_tract_map: Get a map of tracts in a state, as a data.frame
Description
The map returned is exactly the same map which tract_choropleth uses. It is downloaded
using the "tracts" function in the tigris package, and then it is modified for use with
choroplethr.
Usage
get_tract_map(state_name)
Arguments
state_name
The name of the state. See ?state.regions for proper spelling and capitalization.