如何使用R中的传单包使标记及其工具提示同时可见？

Question

I am using the leaflet package in RStudio to plot a data set containing geographical co-ordinates on a map.

My code stands as follows:

setwd("E:/RTests")
library(leaflet)
library(maps)
mydata <- read.csv("data1.csv", check.names=FALSE, stringsAsFactors = FALSE, header = TRUE, fileEncoding="UTF-8-BOM")

mydata <- data.frame(mydata)
leaflet(data = mydata) %>% addTiles() %>%
  addMarkers (~lon, ~lat, popup = ~as.character(emp), label = ~as.character(emp))

The output is fine. However, I now want the tooltips associated to the markers to be permanently visible. As is, the tooltips appear only when I hover the mouse on the markers.

How can I achieve this?

Answer 1

Ok I got it!

leaflet(data = mydata) %>% addTiles() %>%
  addMarkers (~lon, ~lat, popup = ~as.character(emp), label = ~as.character(emp), labelOptions = labelOptions(noHide = T))