I have a leaflet map that shows AwesomeMarkers appropriately, but when I add clusterOptions = markerClusterOptions to the arguments, none of the markers are displayed.
I'm following the examples here: 
Same code as above but with clusterOptions set:
leaflet(dat) %>%
addPolygons(data = sf_states, weight = 2, color = "#000000", opacity = 1, fillOpacity = 1,
fillColor = "white") %>%
addAwesomeMarkers(
clusterOptions = markerClusterOptions()
)
Trying to make the coords into an sf yields the same blank map as above:
dat_sf <- st_as_sf(dat, coords = c("lng", "lat"), crs = 4326)
leaflet(dat_sf) %>%
addPolygons(data = sf_states, weight = 2, color = "#000000", opacity = 1, fillOpacity = 1,
fillColor = "white") %>%
addAwesomeMarkers(
clusterOptions = markerClusterOptions()
)
─ Session info ────────────────────────────────────────────────────────────────────────────────────────
setting value
version R version 4.2.0 (2022-04-22)
os macOS Monterey 12.4
system x86_64, darwin17.0
ui RStudio
language (EN)
collate en_US.UTF-8
ctype en_US.UTF-8
tz America/Denver
date 2022-07-12
rstudio 2022.02.3 492 Prairie Trillium (desktop)
pandoc 2.17.1.1 @ /Applications/RStudio.app/Contents/MacOS/quarto/bin/ (via rmarkdown)
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CodePudding user response：
You will need to add addTiles() to the code
leaflet(dat) %>%
addPolygons(data = sf_states, weight = 2, color = "#000000", opacity = 1, fillOpacity = 1,
fillColor = "white") %>%
addTiles() %>%
addAwesomeMarkers(
clusterOptions = markerClusterOptions()
)
