title: China not showing on chloropleth map in R
body: <p>I am trying to make a simple chloropleth map in r. While I can create the map, China does not show up at all, leaving a giant hole in the map. I have checked that China is in the data, so I am not sure what is going on. here is my code:</p>
  
  <pre><code>library(tidyverse)
  library(maps)
  
  ## load data ----
  data(country.map, package = "choroplethrMaps")
  co2 &lt;- read.csv("https://raw.githubusercontent.com/acircleda/tmp/master/food emissions.csv") %&gt;% 
    mutate(region = tolower(country))
  
  data&lt;-co2 %&gt;% 
    left_join(country.map, by="region") %&gt;%
    group_by(region) %&gt;% mutate(
      c02sum = sum(co2_emmission)
    )
  
  ggplot(data, aes(long, lat, group = group))+
    geom_polygon(aes(fill = c02sum), color = "white", na="grey80")+
    scale_fill_viridis_c(option = "C")
  
  ##no china
  
  china&lt;-data %&gt;% filter(region == "china") ##china is in the data
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/ns1ud.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ns1ud.png" alt="nochina"></a></p>