title: is it possible to to have a fixed width on geom_bar
body: <p>I am working with bunch of different data frames which could have multiple variables or a singel variable:</p>
  
  <p>my data frame looks like this:
   x</p>
  
  <pre><code>Team         Grade
  Football      10
  </code></pre>
  
  <p>When I do this, bar size is huge. I would like to have a fix size so that it looks good when there is one or 2 rows of data: </p>
  
  <pre><code>ggplot(x, aes(Team, Grade, group=Team)) + geom_bar(aes(fill=Team))
  </code></pre>