Adding points to a map

The maps created using plot_geo() are still plotly objects, so you can add additional layers as before. In this exercise, you will add points to a United States map representing the locations where President Trump held rallies for the 2018 midterm election. The dataset rallies2018 contains the date, city, state, latitude, longitude, and number of number of people who spoke.

Note that plotly has already been loaded for you.

Latihan ini adalah bagian dari kursus

Interactive Data Visualization with plotly in R

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Petunjuk latihan

Use add_markers() to add points representing the rallies to the U.S. map. Be sure to map long to the x-axis, lat to the y-axis, and no.speakers to the size of the points.
Add the title "2018 Trump Rallies".
Restrict the scope of the map to the 'usa'.

Latihan interaktif praktis

Cobalah latihan ini dengan menyelesaikan kode contoh berikut.

# Map President Trump's rallies in 2018
rallies2018 %>%
  plot_geo(locationmode = 'USA-states') %>%
  ___(
    ___, ___, ___,  
    hoverinfo = "text", text = ~paste(city, state, sep = ",")
  ) %>%
  ___(___ = ___, 
      geo = ___(___ = ___))

Edit dan Jalankan Kode