Script does not run in Rstudio but runs well line by line

Question

I tried the most basic code for leaflet in rstudio:

library(leaflet)
m <- leaflet()
m <- addTiles(m)
m <- addMarkers(m, lng=174.768, lat=-36.852, popup="The birthplace of R")
m

When I run it as a script, nothing happens, the m object is not created, no other errors are given. However, if I run it line by line, it gives the expected output - object m is created and the map is printed.

What can be the problem? ChatGPT could not tell. I reinstalled and updated everything, all libraries and Rstudio itself.

Answer 1

Install all the packages before you try this:

library(leaflet)
library(htmlwidgets)

m <- leaflet() %>%
    addTiles() %>%
    addMarkers(lng = 174.768, lat = -36.852, popup = "The birthplace of R")

saveWidget(m, file = "leaflet_map.html", selfcontained = TRUE)
system(paste0("cmd /c start leaflet_map.html"))

Let me know if this worked for you.

For me the above got opened in system default browser. I am using Windows PC.

for Mac / Linux, you should use:

system("open leaflet_map.html")