Map - points - ggplot2 map of points in the USA - very basic map

Usage

mapfast_gg(
  mydf = data.frame(lat = 40, lon = -100)[0, ],
  dotsize = 1,
  ptcolor = "black",
  xlab = "Longitude",
  ylab = "Latitude",
  ...
)

Arguments

mydf: data.frame with columns named lat and lon
dotsize: optional, size of dot representing a point
ptcolor: optional, color of dot
xlab: optional, text for x label
ylab: optional, text for y label
...: optional, passed to ggplot2::labs()

Value

a ggplot() object

Examples

# \donttest{
  mapfast_gg(EJAM::testpoints_10)
#> Error in ggplot2::map_data("usa"): The package "maps" is required for `map_data()`.

  pts <- read.table(textConnection(
  "lat lon
  39.5624775 -119.7410994
  42.38748056 -94.61803333"
  ),
  header = TRUE,
  as.is = TRUE
  )
  mapfast_gg(pts)
#> Error in ggplot2::map_data("usa"): The package "maps" is required for `map_data()`.
  # str(pts) # lon, not long
  # }