add_marker: Add a single marker to the map
In crazycapivara/mapboxer: An R Interface to 'Mapbox GL JS'

Add a single marker to the map

1	add_marker(map, lng, lat, popup = NULL)

`map`	A mapboxer object.
`lng`	The longitude of the marker.
`lat`	The latitude of the marker.
`popup`	The popup text (HTML) that is displayed when you click on the marker.

lng <- -0.09
lat <- 51.5

map <- mapboxer() %>%
  set_view_state(lng, lat) %>%
  add_marker(lng, lat, popup = "You are here!")

if (interactive()) map