Leaflet only works with e_scatter and
e_effect_scatter.
Scatter
url <- "https://echarts.apache.org/examples/data-gl/asset/data/population.json"
data <- jsonlite::fromJSON(url)
data <- as.data.frame(data)
names(data) <- c("lon", "lat", "value")
data$value <- log(data$value)
data |>
e_charts(lon) |>
e_leaflet() |>
e_leaflet_tile() |>
e_scatter(lat, size = value, coord_system = "leaflet")