title: How do I change the maptype in ggmap?
body: <p>I am having trouble changing the background of my <code>ggmap</code>. When I try to change the <code>maptype</code> it always comes out as <code>terrain</code>. I would like to change it to <code>satellite</code>. Any suggestions? Here is my code:</p>
  
  <pre><code> library(ggmap)
   # Long and Lat Coordinates
   Cuba_all &lt;- data.frame("Longitude" = c(-79.79623, -79.42313, -79.01722, -80.29218, -80.50040, -80.51981, -80.36674, -79.87957, -79.66906, -79.76122, -80.26587, -79.91689, -80.10454, -80.22530, -80.12910, -79.98889, -79.84307, -79.81694, -80.22201, -80.48088, -80.44482, -80.29068, -80.36213, -80.50879, -80.29634), "Latitude" = c(22.06622, 22.14845, 22.20900, 22.05258, 22.30107, 22.88154, 22.70679, 22.53541, 22.39237, 22.35697, 21.91868, 22.08949, 21.83760, 22.10561, 22.11061, 22.02766, 22.04936, 22.37516, 22.56684, 22.44313, 22.44416, 22.50470, 22.75872, 22.35473, 22.49178))
   # Create Cuba Dimensions
   sbbox &lt;- make_bbox(lon = Cuba_all$Longitude, lat = Cuba_all$Latitude, f = .1)
   sbbox
   # Grab Map of Cuba
   sq_map &lt;- get_map(location = sbbox, source = "google", maptype = "satellite")
   # Plot Map
   ggmap(sq_map)
  </code></pre>