title: Stacked bar chart
body: <p>I would like to create a stacked chart using ggplot2 and geom_bar.</p>
  
  <p>Here is my source data:</p>
  
  <pre><code>Rank F1     F2     F3
  1    500    250    50
  2    400    100    30
  3    300    155    100
  4    200    90     10
  </code></pre>
  
  <p>I want a stacked chart where x is the rank and y is the values in F1, F2, F3.</p>
  
  <pre><code># Getting Source Data
    sample.data &lt;- read.csv('sample.data.csv')
  
  # Plot Chart
    c &lt;- ggplot(sample.data, aes(x = sample.data$Rank, y = sample.data$F1))
    c + geom_bar(stat = "identity")
  </code></pre>
  
  <p>This is as far as i can get. I'm not sure of how I can stack the rest of the field values.</p>
  
  <p>Maybe my data.frame is not in a good format?</p>