title: ggplot2: boxplot with all points distributed evenly in a row
body: <p>I have a boxplot generated with the following code:</p>
  
  <pre><code>b.males &lt;- c(6, 7, 8, 8, 8, 9, 10, 10, 11, 11, 12, 12, 12, 12, 13, 14, 15)
  b.females &lt;- c(14, 13, 12, 12, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7)
  b.total&lt;-c(b.males,b.females)
  
  b.m&lt;-data.frame(b.males)
  b.f&lt;-data.frame(b.females)
  b.t&lt;-data.frame(b.total)
  
  myList&lt;-list(b.m, b.f, b.t)
  df&lt;-melt(myList)
  
  colnames(df) &lt;- c("class","count")
  plt&lt;-ggplot(df, aes(x=class,y=count))+geom_boxplot() 
  plt + geom_point(aes(x = as.numeric(class) + 0, colour=class))
  </code></pre>
  
  <p>What I'd like to do is, for any given y-axis point, show all individual points in a row. For example, for b.males, I'd like to see 3 dots at 8, with the middle dot exactly in the center and the other two dots right next to it on either side.</p>
  
  <p>I attempted: </p>
  
  <pre><code>plt + geom_point(aes(x = as.numeric(class) + 0, colour=class)) +
        geom_jitter(position=position_jitter(width=.1, height=0))
  </code></pre>
  
  <p>But this did not keep the points close together. Additionally, in some cases it would put multiple points to the right or left of the middle of the box, not distributing them evenly as I'd like.</p>