title: ggplot2: sorting a plot
body: <p>I have a data.frame, that is sorted from highest to lowest. For example: </p>
  
  <pre><code>x &lt;- structure(list(variable = structure(c(10L, 6L, 3L, 4L, 2L, 8L, 
  9L, 5L, 1L, 7L), .Label = c("a", "b", "c", "d", "e", "f", "g", 
  "h", "i", "j"), class = c("ordered", "factor")), value = c(0.990683229813665, 
  0.975155279503106, 0.928571428571429, 0.807453416149068, 0.717391304347826, 
  0.388198757763975, 0.357142857142857, 0.201863354037267, 0.173913043478261, 
  0.0496894409937888)), .Names = c("variable", "value"), row.names = c(10L, 
  6L, 3L, 4L, 2L, 8L, 9L, 5L, 1L, 7L), class = "data.frame")
  
  ggplot(x, aes(x=variable,y=value)) + geom_bar(stat="identity") + 
   scale_y_continuous("",label=scales::percent) + coord_flip() 
  </code></pre>
  
  <p>Now, the data is nice and sorted, but when I plot, it comes out sorted by factor. It's annoying, how do I fix it?</p>