title: qplot factor by condition
body: <p>Using this dataframe, <code>df</code>:</p>
  
  <pre><code>bat.condition bat.group      bat.money
  1              safe          2825.882
  2              safe          2931.875
  1              glsa          6975.882
  2              glsa          5407.500
  1              studyabroad   3084.706
  2              studyabroad   2253.750 
  1              jcc           4134.706
  2              jcc           5550.625
  1              eagg          4578.824
  2              eagg          5456.250
  </code></pre>
  
  <p>I would like to plot a bar chart with group on the x axis, money on the y axis.  Further, I would like the bars to be separated/factored by the condition in which they occur.  So far I have used the following code and it is nearly ideal.  I have the bars factored by group, I would just like to further factor it by condition.  </p>
  
  <pre><code>qplot(factor(bat.group), data = df, geom = "bar", fill = bat.group, 
        weight = bat.money, position = "dodge")
  </code></pre>
  
  <p>Which produces the image seen here.</p>
  
  <p><img src="https://i.stack.imgur.com/532OF.png" alt="enter image description here"></p>