Helper for plotting locations on map. — plot.openaq_locations_data.frame • openaq

Plots location coordinates. If the maps package is installed, a world boundary overlay is added. Install with install.packages("maps").

Usage

# S3 method for class 'openaq_locations_data.frame'
plot(x, y = NULL, ...)

Arguments

x: the coordinates of points in the plot. Alternatively, a single plotting structure, function or any R object with a plot method can be provided.
y: the y coordinates of points in the plot, optional if x is an appropriate structure.
...: Other options passed on to base::plot().

Value

Called for its side effect of producing a plot. Returns NULL invisibly.

Examples

if (FALSE) { # interactive()
df <- list_locations(limit = 100)
plot(df, pch = 19, col = df$provider_name)
}