Leaflet Maps

Introduction

Leaflet creates interactive maps in R. It's useful for spatial data visualization.

Basic Map

library(leaflet)

# Create map
leaflet() %>%
  addTiles()

# Add marker
leaflet() %>%
  addTiles() %>%
  addMarkers(lng = -122.4194, lat = 37.7749, popup = "San Francisco")

With Data

# From dataframe
leaflet(df) %>%
  addTiles() %>%
  addMarkers(~longitude, ~latitude, popup = ~name)

Map Options

# Different tile layers
addProviderTiles("CartoDB.Positron")
addProviderTiles("Esri.NatGeoWorldMap")

# Add circles
addCircles(~lng, ~lat, radius = 500, color = "red")

Summary

Leaflet creates interactive maps. Use it for spatial data visualization.