My First Leaflet Map

Create a leaflet map object.

library(leaflet)
## Warning: パッケージ 'leaflet' はバージョン 4.3.3 の R の下で造られました
map <- leaflet() %>% addTiles()

Create a marker with a picture of NUS and a link to its homepage.

NUSIcon <- makeIcon(
   iconUrl = "https://images.app.goo.gl/Fm7oC4sJptegr8vC8",
   iconWidth = 30*408/255, iconHeight = 30,
   iconAnchorX = 30*408/255/2, iconAnchorY = 30/2
)

Add the marker to the map and display the map.

NUS_Popup <- "<a href='https://msba.nus.edu.sg/'>NUS business school<br><img src='https://images.app.goo.gl/Fm7oC4sJptegr8vC8' width='210' height='132'  alt='NUS MSBA site' title='NUS MSBA site'></a>"
map %>%
   addTiles() %>%
   addMarkers(lat = 1.298679, lng = 103.774767, popup = NUS_Popup)