小编sha*_*ank的帖子

library(leaflet)
library(htmltools)
library(htmlwidgets)
library(dplyr)
#
df1 <- data.frame(points=c("p1", "p2"), lat=c(49.47259, 49.48095), long=c(-103.7054, -103.6126), value=c(50.34, 100.25))
df2 <- data.frame(points=c("p1", "p2"), lat=c(49.47809, 49.66849), long=c(-103.5614, -103.0224), value=c(300.56, 505.34))
#
pal1 <- colorNumeric(
palette = "PRGn",
domain = df1$value
)
#
pal2 <- colorNumeric(
palette = "PRGn",
domain = df2$value
)
#
n <- leaflet() %>% addTiles(group="1st layer") %>% addTiles(group="2nd layer") %>%
addCircles(data=df1, lng=~long, lat=~lat, weight = 3, radius=250, color = ~pal1(value),
         stroke = TRUE, fillOpacity = 0.8,group="1st layer") %>%
addCircles(data=df2, lng=~long, lat=~lat, weight …