title: Color only a specific boxplot among many using ggplot
body: <p>I would like to specify the color of one boxplot among many using ggplot.</p>
  
  <p>For example, say I were using the Orthodont dataset that comes with the nlme package.</p>
  
  <p>How would I specify that I would like the boxplot for males to be green?</p>
  
  <pre><code>&gt; head(Orthodont)
  Grouped Data: distance ~ age | Subject
    distance age Subject  Sex
  1     26.0   8     M01 Male
  2     25.0  10     M01 Male
  3     29.0  12     M01 Male
  4     31.0  14     M01 Male
  5     21.5   8     M02 Male
  6     22.5  10     M02 Male
  &gt; ggplot(data = Orthodont) + geom_boxplot(aes(x = factor(Sex), y = distance))
  </code></pre>
  
  <p>Thanks!</p>