roads {cholera} | R Documentation |
This data set adds road names from John Snow's map to Dodson and Tobler's street data. The latter are also available from HistData::Snow.streets.
roads
A data frame with 206 observations and 5 variables. The data describe the roads on Snow's map.
street
street segment number, which range between 1 and 528
n
number of points in this street line segment
x
x-coordinate
y
y-coordinate
id
unique numeric ID
name
road name
lon
longitude
lat
latitude
vignette
("road.names")